642 results on '"Anthony Johnson"'
Search Results
52. Development of loop-mediated isothermal amplification and SYBR green real-time PCR methods for the detection of Citrus yellow mosaic badnavirus in citrus species
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Anthony Johnson, A.M., Dasgupta, I., and Sai Gopal, D.V.R.
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- 2014
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53. An Empirical Method for the Evaluation of Dynamic Network Simulation Methods.
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Daniel Baller, Joshua Lospinoso, and Anthony Johnson
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- 2008
54. Randomized Trial of Fetal Surgery for Severe Left Diaphragmatic Hernia
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Jan A, Deprest, Kypros H, Nicolaides, Alexandra, Benachi, Eduard, Gratacos, Greg, Ryan, Nicola, Persico, Haruhiko, Sago, Anthony, Johnson, Mirosław, Wielgoś, Christoph, Berg, Ben, Van Calster, Francesca M, Russo, Pensee, Wu, Obstetrics & Gynecology, Pediatric Surgery, Intensive Care, University of Zurich, and Deprest, Jan A
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Adult ,Fetal Membranes, Premature Rupture ,Vascular damage Radboud Institute for Health Sciences [Radboudumc 16] ,Gestational Age ,610 Medicine & health ,2700 General Medicine ,030204 cardiovascular system & hematology ,03 medical and health sciences ,Obstetric Labor, Premature ,All institutes and research themes of the Radboud University Medical Center ,0302 clinical medicine ,Pregnancy ,Humans ,10220 Clinic for Surgery ,030212 general & internal medicine ,Watchful Waiting ,Fetal Therapies ,Fetoscopy ,Patient Acuity ,Obstetrics and Gynecology ,General Medicine ,Balloon Occlusion ,Intention to Treat Analysis ,Trachea ,Premature Birth ,Female ,Hernias, Diaphragmatic, Congenital - Abstract
Observational studies have shown that fetoscopic endoluminal tracheal occlusion (FETO) has been associated with increased survival among infants with severe pulmonary hypoplasia due to isolated congenital diaphragmatic hernia on the left side, but data from randomized trials are lacking.In this open-label trial conducted at centers with experience in FETO and other types of prenatal surgery, we randomly assigned, in a 1:1 ratio, women carrying singleton fetuses with severe isolated congenital diaphragmatic hernia on the left side to FETO at 27 to 29 weeks of gestation or expectant care. Both treatments were followed by standardized postnatal care. The primary outcome was infant survival to discharge from the neonatal intensive care unit. We used a group-sequential design with five prespecified interim analyses for superiority, with a maximum sample size of 116 women.The trial was stopped early for efficacy after the third interim analysis. In an intention-to-treat analysis that included 80 women, 40% of infants (16 of 40) in the FETO group survived to discharge, as compared with 15% (6 of 40) in the expectant care group (relative risk, 2.67; 95% confidence interval [CI], 1.22 to 6.11; two-sided P = 0.009). Survival to 6 months of age was identical to the survival to discharge (relative risk, 2.67; 95% CI, 1.22 to 6.11). The incidence of preterm, prelabor rupture of membranes was higher among women in the FETO group than among those in the expectant care group (47% vs. 11%; relative risk, 4.51; 95% CI, 1.83 to 11.9), as was the incidence of preterm birth (75% vs. 29%; relative risk, 2.59; 95% CI, 1.59 to 4.52). One neonatal death occurred after emergency delivery for placental laceration from fetoscopic balloon removal, and one neonatal death occurred because of failed balloon removal. In an analysis that included 11 additional participants with data that were available after the trial was stopped, survival to discharge was 36% among infants in the FETO group and 14% among those in the expectant care group (relative risk, 2.65; 95% CI, 1.21 to 6.09).In fetuses with isolated severe congenital diaphragmatic hernia on the left side, FETO performed at 27 to 29 weeks of gestation resulted in a significant benefit over expectant care with respect to survival to discharge, and this benefit was sustained to 6 months of age. FETO increased the risks of preterm, prelabor rupture of membranes and preterm birth. (Funded by the European Commission and others; TOTAL ClinicalTrials.gov number, NCT01240057.).
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- 2021
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55. Examining Cross-border Comovements of REITs Around the World
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Mark Anthony Johnson, Atsuyuki Naka, and Abdulrahman Alhassan
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Real estate investment trust ,Economics, Econometrics and Finance (miscellaneous) ,Economics ,Monetary economics - Published
- 2021
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56. Fetoscopic endoluminal tracheal occlusion (FETO) versus expectant care of severe left-diaphragmatic hernia in north america
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Eric P. Bergh, Ahmet A. Baschat, Holly Hedrick, Foong Yen Lim, Kevin Magee, Greg Ryan, Magdalena Sanz Cortes, Mauro Schenone, Michael V. Zaretsky, and Anthony Johnson
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Obstetrics and Gynecology - Published
- 2023
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57. Complications of fetoscopic laser surgery across gestational ages
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Clifton O. Brock, Eric P. Bergh, Edgar Hernandez Andrade, Ramesha Papanna, and Anthony Johnson
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Obstetrics and Gynecology - Published
- 2023
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58. Differences between myelomeningocele and myeloschisis lesions in patients undergoing open in-utero spina bifida repair
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Jeannine Garnett, Eric P. Bergh, Lovepreet Mann, Kuojen Tsao, Mary Austin, Anthony Johnson, Hope Northrup, Kit Sing Au, Brandon Miller, Stephen A. Fletcher, and Ramesha Papanna
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Obstetrics and Gynecology - Published
- 2023
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59. Fetal umbilical artery(UA) doppler changes during laparotomy-assisted fetosocopic spina-bifida repair(FSR) vs. open in-utero spina-bifida repair(OSR)
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Sami Backley, Jeannine Garnett, Edgar Hernandez Andrade, Eric P. Bergh, Ranu Jain, Kuojen Tsao, Mary Austin, Stephen A. Fletcher, Brandon Miller, Brittany Graham, Heinrich Taegtmeyer, Anthony Johnson, Lovepreet Mann, and Ramesha Papanna
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Obstetrics and Gynecology - Published
- 2023
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60. Neonatal survival after serial amnioinfusions for fetal bilateral renal agenesis: report from the raft trial
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Jena L. Miller, Ahmet A. Baschat, Mara Rosner, Yair J. Blumenfeld, Julie Moldenhauer, Anthony Johnson, Mauro Schenone, Michael V. Zaretsky, Ramen H. Chmait, Juan Gonzalez Velez, Russell S. Miller, Anita J. Moon-Grady, Ellen M. Bendel-Stenzel, Amaris Keiser, Radhika Avadhani, Angie Jelin, Jonathan Davis, Daniel Warren, Daniel Hanley, and Meredith Atkinson
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Obstetrics and Gynecology - Published
- 2023
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61. De novo Transcriptome Analysis of Drought-Adapted Cluster Bean (Cultivar RGC-1025) Reveals the Wax Regulatory Genes Involved in Drought Resistance
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B. Manohara Reddy, A. M. Anthony Johnson, N. Jagadeesh Kumar, Boya Venkatesh, N. Jayamma, Merum Pandurangaiah, and Chinta Sudhakar
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Plant Science - Abstract
Cluster bean (Cyamopsis tetragonoloba L.) is one of the multipurpose underexplored crops grown as green vegetable and for gum production in dryland areas. Cluster bean is known as relatively tolerant to drought and salinity stress. To elucidate the molecular mechanisms involved in the drought tolerance of cluster bean cultivar RGC-1025, RNA sequencing (RNA-seq) of the drought-stressed and control samples was performed. De novo assembly of the reads resulted in 66,838 transcripts involving 203 pathways. Among these transcripts, differentially expressed gene (DEG) analysis resulted in some of the drought-responsive genes expressing alpha dioxygenase 2, low temperature-induced 65 kDa protein (LDI65), putative vacuolar amino acid transporter, and late embryogenesis abundant protein (LEA 3). The analysis also reported drought-responsive transcription factors (TFs), such as NAC, WRKY, GRAS, and MYB families. The relative expression of genes by qRT-PCR revealed consistency with the DEG analysis. Key genes involved in the wax biosynthesis pathway were mapped using the DEG data analysis. These results were positively correlated with epicuticular wax content and the wax depositions on the leaf surfaces, as evidenced by scanning electron microscope (SEM) image analysis. Further, these findings support the fact that enhanced wax deposits on the leaf surface had played a crucial role in combating the drought stress in cluster beans under drought stress conditions. In addition, this study provided a set of unknown genes and TFs that could be a source of engineering tolerance against drought stress in cluster beans.
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- 2022
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62. De novo Transcriptome Analysis of Drought-Adapted Cluster Bean (Cultivar RGC-1025) Reveals the Wax Regulatory Genes Involved in Drought Resistance
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Reddy, B. Manohara, primary, Anthony Johnson, A. M., additional, Jagadeesh Kumar, N., additional, Venkatesh, Boya, additional, Jayamma, N., additional, Pandurangaiah, Merum, additional, and Sudhakar, Chinta, additional
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- 2022
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63. Nickel tolerance and biosorption potential of rhizobia associated with horse gram [Macrotyloma uniflorum (Lam.) Verdc.]
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Prabhavati Edulamudi, Veera Mallaiah Konada, Anthony Johnson Antony Masilamani, Venkata Ramana Sai Gopal Divi, and Umamaheswara Rao Vanga
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0106 biological sciences ,Root nodule ,biology ,Strain (chemistry) ,fungi ,Biosorption ,food and beverages ,chemistry.chemical_element ,Plant Science ,010501 environmental sciences ,biology.organism_classification ,01 natural sciences ,Pollution ,Macrotyloma ,Rhizobia ,Phytoremediation ,Nickel ,chemistry ,Botany ,Environmental Chemistry ,Rhizobium ,010606 plant biology & botany ,0105 earth and related environmental sciences - Abstract
The rhizobia isolated from root nodules of horse gram were screened for nickel (Ni) tolerance in vitro. The strain HGR-4 could tolerate 1000 µg g−1 of Ni. It was also observed that horse gram plant...
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- 2021
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64. Stimulated Raman generation of aqueous singlet oxygen without photosensitizers
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Aristides Marcano Olaizola, Robinson Kuis, Anthony Johnson, and David Kingsley
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Methylene Blue ,Oxygen ,Radiation ,Photosensitizing Agents ,Radiological and Ultrasound Technology ,Singlet Oxygen ,Biophysics ,Solvents ,Water ,Radiology, Nuclear Medicine and imaging ,Deuterium Oxide ,Uric Acid - Abstract
Singlet oxygen is traditionally produced via photosensitizer molecules such as methylene blue, which function as catalysts. Here we investigate stimulated Raman generation of singlet oxygen from dissolved oxygen in both water (H
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- 2022
65. Design and Protocol of the Renal Anhydramnios Fetal Therapy (RAFT) Trial
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Meredith A. Atkinson, Eric B. Jelin, Ahmet Baschat, Yair J. Blumenfeld, Ramen H. Chmait, Elizabeth O'Hare, Julie S. Moldenhauer, Michael V. Zaretsky, Russell S. Miller, Rodrigo Ruano, Juan M. Gonzalez, Anthony Johnson, W. Andrew Mould, Jonathan M. Davis, Daniel F. Hanley, Amaris M. Keiser, Mara Rosner, and Jena L. Miller
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Pharmacology ,Fetal Therapies ,Pregnancy ,Infant, Newborn ,Quality of Life ,Humans ,Multicenter Studies as Topic ,Pharmacology (medical) ,Female ,Gestational Age ,Amniotic Fluid ,Oligohydramnios ,Article - Abstract
Anhydramnios secondary to anuria before 22 weeks of gestational age and congenital bilateral renal agenesis before 26 weeks of gestational age are collectively referred to as early-pregnancy renal anhydramnios. Early-pregnancy renal anhydramnios occurs in at least 1 in 2000 pregnancies and is considered universally fatal when left untreated because of severe pulmonary hypoplasia precluding ex utero survival The Renal Anhydramnios Fetal Therapy (RAFT) trial is a nonrandomized, nonblinded, multicenter clinical trial designed to assess the efficacy, safety, and feasibility of amnioinfusions for patients with pregnancies complicated by early-pregnancy renal anhydramnios. The primary objective of this study is to determine the proportion of neonates surviving to successful dialysis, defined as use of a dialysis catheter for ≥14 days.A consortium of 9 North American Fetal Therapy Network (NAFTNet) centers was formed, and the RAFT protocol was refined in collaboration with the NAFTNet Scientific Committee. Enrollment in the trial began in April 2020. Participants may elect to receive amnioinfusions or to join the nonintervention observational expectant management group. Eligible pregnant women must be at least 18 years of age with a fetal diagnosis of isolated early-pregnancy renal anhydramnios.In addition to the primary study objective stated above, secondary objectives include (1) to assess maternal safety and feasibility of the serial amnioinfusion intervention (2) to perform an exploratory study of the natural history of untreated early pregnancy renal anhydramnios (3) to examine correlations between prenatal imaging and lung specific factors in amniotic fluid as predictive of the efficacy of serial percutaneous amnioinfusions and (4) to determine short- and long-term outcomes and quality of life in surviving neonates and families enrolled in RAFT IMPLICATIONS: The RAFT trial is the first clinical trial to investigate the efficacy, safety, and feasibility of amnioinfusions to treat the survival-limiting pulmonary hypoplasia associated with anhydramnios. Although the intervention offers an opportunity to treat a condition known to be almost universally fatal in affected neonates, the potential burdens associated with end-stage kidney disease from birth must be acknowledged.gov identifier: NCT03101891.
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- 2022
66. Author response for 'Performance of a novel, eco‐friendly, cellulose‐based superabsorbent polymer ( <scp>Cellulo‐SAP</scp> ): Absorbency, stability, reusability, and biodegradability'
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null Rosa Arredondo, null Zhongshun Yuan, null Dennise Sosa, null Anthony Johnson, null Ramon Filipe Beims, null Hongwei Li, null Qiang Wei, and null Chunbao Charles Xu
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- 2022
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67. R2R3 MYB Transcription Factor, AhMYB94 Plays a Crucial Role in Stress Tolerance of a Salt Susceptible Groundnut Cultivar
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Nulu Jagadeesh kumar, AM Anthony Johnson, Boya Venkatesh, N Jayamma, B Manohara Reddy, M Pandurangaiah, and Chinta Sudhakar
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fungi ,food and beverages - Abstract
R2R3 MYB transcription factors are involved in plant growth and development and abiotic and biotic stress responses. Several MYB genes are involved in salt tolerance in several plant species. In this study, salt-tolerant groundnut cultivar K-9's stress-responsive transcription factor AhMYB94 was overexpressed in salt-susceptible groundnut cultivar K-6. The AhMYB94 gene was activated under drought and salinity. Relative gene expression analysis revealed that AhMYB94 was significantly higher by salt stress treatments than drought stress in groundnut cultivar K-6. Overexpression of AhMYB94 in a salt susceptible groundnut cultivar improved the salt tolerance as evidenced by better growth status, fresh and dry biomass of overexpression lines than wild type (WT) under salt stress conditions. Further, less reactive oxygen species (ROS) accumulated in AhMYB94 overexpressing lines when exposed to salt stress, as estimated by diaminobenzidine (DAB) or nitroblue tetrazolium (NBT) histochemical staining. Further overexpression of AhMYB94 in groundnut confers significantly increased tolerance ability of plants to oxidative damage under salt stress, mainly by increasing the osmolyte content, the activities of antioxidative enzymes such as SOD, and APX, reducing malonaldehyde (MDA) content, and upregulation of the expression of stress-related genes. When exposed to salt stress, the AhMYB94 transgenic lines demonstrated a higher Na + and K + content and a lower Na + /K + ratio than the wild type (WT). These results demonstrated that AhMYB94 plays a positive role in enhancing salt tolerance and could be a candidate for improved tolerance of plants to salt stress.
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- 2022
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68. Tracking professional conduct of graduates of Federal College of Education, Yola, Nigeria between 2000 and 2010
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Adedokun, Babatunde Adewumi, primary, Kaibo, Jiddere Musa, additional, Bello, Mahmoud Liman, additional, Ukwumonu, Anthony Johnson, additional, Muhammad, Husayn Mahmud, additional, Isiaka, Amao, additional, Iyanda, Sharafadeen, additional, and Ganiyu, Abdul, additional
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- 2022
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69. Fetal ventricular strain in uncomplicated and selective growth‐restricted monochorionic diamniotic twin pregnancies and cardiovascular response in pre‐twin–twin transfusion syndrome
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A. Agarwal, Ramesha Papanna, Kenneth J. Moise, Anthony Johnson, Cynthia S. Bell, Roopali Donepudi, Christoph Wohlmuth, I. E. Averiss, Blair Stevens, and Helena M. Gardiner
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selective intrauterine growth restriction ,sIUGR ,Twins ,Intrauterine growth restriction ,0302 clinical medicine ,Obstetrics and gynaecology ,Pregnancy ,Single-Blind Method ,Prospective Studies ,030212 general & internal medicine ,Prospective cohort study ,Twin Pregnancy ,ventricular strain ,Fetal Growth Retardation ,030219 obstetrics & reproductive medicine ,Radiological and Ultrasound Technology ,Obstetrics ,cardiovascular ,Obstetrics and Gynecology ,Gestational age ,Fetofetal Transfusion ,General Medicine ,Original Papers ,Fetal Weight ,Multilevel Analysis ,Regression Analysis ,Female ,Ductus venosus ,Adult ,medicine.medical_specialty ,Heart Ventricles ,Gestational Age ,Ultrasonography, Prenatal ,03 medical and health sciences ,Fetal Heart ,Fetus ,twin–twin transfusion syndrome ,medicine ,Humans ,Placental Circulation ,Radiology, Nuclear Medicine and imaging ,monochorionic ,Original Paper ,business.industry ,Reproducibility of Results ,medicine.disease ,TTTS ,Reproductive Medicine ,Pregnancy, Twin ,business - Abstract
Objectives Our primary aim was to confirm whether intertwin discordance in ventricular strain and ductus venosus (DV) time intervals predicts twin–twin transfusion syndrome (TTTS). Secondary aims were to create gestational‐age ranges for ventricular strain in uncomplicated monochorionic diamniotic (MCDA) twin pregnancies without selective intrauterine growth restriction (sIUGR) and to characterize the relationship of ventricular strain with gestational age in MCDA twin pregnancies with sIUGR that did not develop TTTS. Methods In the period 2015–2018, we enrolled 150 MCDA twin pregnancies consecutively into this prospective, blinded study of global longitudinal left and right ventricular strain. With the observer blinded to twin pairing and pregnancy outcome, videoclips of the four‐chamber view, which had been recorded during ultrasound surveillance in the usual window for development of TTTS (16–26 completed gestational weeks), underwent offline measurement of strain. Uncomplicated MCDA twin pregnancies, without sIUGR, were used to test the association between strain, gestational age and estimated fetal weight using mixed‐effects multilevel regression. Inter‐rater reliability was tested in 208 strain measurements in 31 fetuses from pregnancies which did not develop TTTS and within‐fetus variation was assessed in 16 such fetuses, in which multiple four‐chamber views were taken on the same day. The effect of sIUGR on strain in otherwise uncomplicated MCDA twin pregnancy was analyzed. MCDA twin pregnancies were defined as ‘pre‐TTTS’ when, having been referred for TTTS evaluation, they did not satisfy Quintero staging criteria, but subsequently developed TTTS requiring laser treatment. MCDA pregnancies which did not develop TTTS comprised the ‘non‐TTTS’ group. Cardiovascular parameters measured in these cases included tissue Doppler parameters and DV early filling time as a percentage of the cardiac cycle (DVeT%). Intertwin strain and DVeT% discordance was compared between non‐TTTS and pre‐TTTS cases, matched for gestational age. Results Paired strain data were available for intertwin comparison in 127/150 MCDA twin pregnancies, comprising 14 pre‐TTTS and 113 non‐TTTS pregnancies, after exclusions. Scans were collected at a median frame rate of 97 (range, 28–220) Hz. Laser therapy was performed at a median gestational age of 20.6 (range, 17.2–26.6) weeks. There were no group differences in right (RV) or left (LV) ventricular strain discordance between 68/113 non‐TTTS and 13/14 pre‐TTTS MCDA twin pregnancies 3.6% was found in eight of 13 pre‐TTTS pregnancies. In non‐TTTS pregnancies, the estimated variability in ventricular strain within each twin during the day was high (RV, 19.7; LV, 12.9). However, within each pair (intertwin variation), variability was low (RV, 5.5; LV, 2.9). Interclass correlation reflecting the proportion of total variability represented by the variability between twin pairs was low (RV, 0.22; LV, 0.18). Both RV (P
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- 2020
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70. Trend in ventricle size during pregnancy and its use for prediction of ventriculoperitoneal shunt in fetal open neural tube defect
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Suneet P. Chauhan, KuoJen Tsao, Anthony Johnson, Ramesha Papanna, Erin Bundock, Roopali Donepudi, Sheridan L. Schulte, Clifton O. Brock, and Stephen A. Fletcher
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Adult ,medicine.medical_specialty ,medicine.medical_treatment ,Gestational Age ,Single Center ,Ventriculoperitoneal Shunt ,Ultrasonography, Prenatal ,Cerebral Ventricles ,03 medical and health sciences ,0302 clinical medicine ,Predictive Value of Tests ,Pregnancy ,Internal medicine ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Neural Tube Defects ,Prospective Studies ,030212 general & internal medicine ,Retrospective Studies ,Fetal Therapies ,Univariate analysis ,Fetus ,030219 obstetrics & reproductive medicine ,Radiological and Ultrasound Technology ,Receiver operating characteristic ,business.industry ,Fetal surgery ,Infant, Newborn ,Infant ,Obstetrics and Gynecology ,General Medicine ,medicine.disease ,Treatment Outcome ,ROC Curve ,Reproductive Medicine ,Cardiology ,Gestation ,Female ,business ,Ventriculomegaly - Abstract
OBJECTIVES Fetal surgery for repair of open neural tube defect (ONTD) typically results in decreased need for a ventriculoperitoneal shunt (VPS). Our objectives were to determine the trend in ventricle size (VS) during pregnancy and whether VS and change in VS, as assessed by ultrasound, were predictive of the need for VPS in pregnancy with ONTD. METHODS This was a retrospective analysis of prospectively collected data of consecutive pregnancies with ONTD, evaluated in a single center from January 2012 to May 2018. Two groups were identified: the first consisted of pregnancies that underwent in-utero repair (IUR) and the second those that had postnatal repair (PNR). Penalized B splines were used to determine the trend in VS, across 2-week gestational-age (GA) epochs, between 24 and 36 weeks of gestation. VS at each GA epoch and the change in VS between each GA epoch were compared between the IUR and PNR groups. To determine whether VS at any GA was predictive of VPS, receiver-operating-characteristics (ROC) curves were used and the optimal cut-off at each GA epoch was identified. Univariate analysis and multiple logistic regression were used for further analysis. RESULTS ONTD was diagnosed in 110 fetuses, of whom 69 underwent IUR and 41 had PNR. Fetuses in the IUR group were more likely to have Chiari II malformation (100.0% vs 82.9%; P
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- 2020
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71. Fortnightly surveillance of monochorionic diamniotic twins for twin to twin transfusion syndrome: Compliance and effectiveness
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Kenneth J. Moise, Anthony Johnson, Clifton O. Brock, Baha M. Sibai, Edgar Hernandez Andrade, Sean C. Blackwell, Ramesha Papanna, and Eleazar Soto
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Adult ,0301 basic medicine ,medicine.medical_specialty ,Population ,030105 genetics & heredity ,Twin-to-twin transfusion syndrome ,Ultrasonography, Prenatal ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,medicine ,Humans ,Stage (cooking) ,education ,Genetics (clinical) ,Retrospective Studies ,education.field_of_study ,030219 obstetrics & reproductive medicine ,Obstetrics ,business.industry ,Incidence ,Ultrasound ,Obstetrics and Gynecology ,Gestational age ,Retrospective cohort study ,Fetofetal Transfusion ,Twins, Monozygotic ,medicine.disease ,Texas ,Compliance (physiology) ,Population Surveillance ,Gestation ,Female ,Guideline Adherence ,business - Abstract
Objectives To determine the compliance and effectiveness of fortnightly ultrasound surveillance for detection of twin-twin transfusion syndrome (TTTS) in monochorionic diamniotic (MCDA) twin gestations. Methods This is a retrospective study of ultrasound surveillance of MCDA twins for TTTS. Our surveillance protocol requires fortnightly ultrasounds starting at 16 weeks of gestational age (GA) continuing until delivery. Compliance was assessed by determining the GA of surveillance initiation and time between ultrasounds. GA and Quintero Stage at diagnosis were evaluated to determine whether TTTS was detected prior to advanced disease (Quintero Stage III +) or fetal demise. Results Of 442 women, 264 (59.7%) initiated surveillance after 16 weeks; follow-up ultrasounds were late in 17.4% of cases. TTTS was diagnosed in 43 (9.7%) women at a median GA of 19.7 [17.4, 23.9] weeks. Of 25/43 (58.1%) cases diagnosed during protocol compliance, 12 had advanced disease and two had fetal demise. A similar proportion of diagnoses (n = 18), made while non-compliant, exhibited advanced disease (11/18, 61.1%, P = .40). Thirteen diagnoses occurred during periods of increased ultrasound frequency due to abnormalities (ie, fluid/estimated fetal weight discrepancies or Doppler abnormalities). Conclusions In this population, fortnightly ultrasound compliance was suboptimal. Advanced disease and fetal demise occurred during protocol compliance.
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- 2020
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72. Maintenance-Centered Sustainability Analysis of Brick and Block Clamp
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Axel Lefebure, Anthony Johnson, Juhye Shin, and Shim, Dongha
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Brick ,Clamp ,Computer science ,business.industry ,Block (telecommunications) ,Structural engineering ,business ,Embodied energy - Published
- 2020
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73. Suture techniques and patch materials using an in-vitro model for watertight closure of in-utero spina bifida repair
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Thai Vu, Mary T. Austin, Jeannine Garnett, Manish N. Shah, Ranu Jain, KuoJen Tsao, Kenneth J. Moise, Lovepreet K. Mann, Anthony Johnson, Ramesha Papanna, and Stephen A. Fletcher
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medicine.medical_specialty ,In Vitro Techniques ,Thigh ,Neurosurgical Procedures ,Surgical methods ,In vitro model ,Spina bifida repair ,03 medical and health sciences ,0302 clinical medicine ,Traction ,030225 pediatrics ,medicine ,Animals ,Humans ,Spinal Dysraphism ,Fetal Therapies ,business.industry ,Spina bifida ,Suture Techniques ,General Medicine ,Repair site ,medicine.disease ,Surgery ,medicine.anatomical_structure ,In utero ,030220 oncology & carcinogenesis ,Pediatrics, Perinatology and Child Health ,Wound edge ,business ,Chickens - Abstract
Purpose Despite proven benefits of in-utero spina bifida (SB) repair, ≥ 30% of children at birth have Chiari II malformation or cerebrospinal fluid (CSF) leakage from the repair site. Our study's purpose was to determine CSF pressures in the myelomeningocele sac during mid-gestation in order to design an in-vitro model for evaluating different surgical methods used for watertight closure during in-utero SB repair. Methods CSF pressures were measured during in-utero SB repair at mid-gestation. An in-vitro chicken thigh model, simulating fetal tissue, tested watertight closure when attached to the base of a water column. Primary closure methods were evaluated using defect sizes of 20 × 3 mm for minimal traction or 20 × 8 mm for moderate traction. Additionally, 3 common in-utero repair patches were compared using 15 × 15 mm defects. Results Using 6–12.5 cm pre-determined CSF pressures, 165 in-vitro experiments were performed. Regardless of methodology we found that in 66 primary-based closures that minimal versus moderate wound edge traction provided better seals. The locking method was superior to the non-locking technique for watertight closure in 99 patch-based closures. Conclusions Minimal wound edge traction was best for primary closures, and locking sutures ideal for patch-based closures, however surgical techniques should be individualized to improve upon clinical outcomes.
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- 2020
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74. Detecting malware communities using socio-cultural cognitive mapping
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Kathleen M. Carley, Iain Cruickshank, Timothy Davison, Matthew Elder, and Anthony Johnson
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Structure (mathematical logic) ,General Computer Science ,Cognitive map ,Artificial neural network ,Computer science ,business.industry ,Applied Mathematics ,Remote access trojan ,General Decision Sciences ,02 engineering and technology ,Variation (game tree) ,computer.software_genre ,Machine learning ,ComputingMilieux_MANAGEMENTOFCOMPUTINGANDINFORMATIONSYSTEMS ,Computational Mathematics ,020204 information systems ,Modeling and Simulation ,0202 electrical engineering, electronic engineering, information engineering ,Malware ,020201 artificial intelligence & image processing ,Artificial intelligence ,Malware analysis ,business ,Social network analysis ,computer - Abstract
We apply a variation of socio-cultural cognitive mapping (SCM) to computer malware features explored previously by Saxe and Berlin that characterized malware binaries as benign or malicious based on 1024 program features derived from a deep neural network-based detection system. In this work, we model the features as attributes within a latent spatial domain using a weighted consensus graph representation to visualize and analyze the malware binary communities. The data used in our analysis is extracted from a Remote Access Trojan family named Sakula that first appeared in 2012, and has been used to enable an adversary to run interactive commands and execute remote program functions. Our results show that by SCM we were able to identify distinct malware communities within the malware family, which revealed insights into the overall structure of the various binaries as well as possible temporal relationships between the binaries.
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- 2020
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75. Twin reverse arterial perfusion: Timing of intervention
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Clifton O. Brock and Anthony Johnson
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Heart Defects, Congenital ,Perfusion ,Pregnancy ,Placenta ,Infant, Newborn ,Obstetrics and Gynecology ,Humans ,Premature Birth ,Female ,General Medicine ,Fetofetal Transfusion ,Pregnancy Reduction, Multifetal - Abstract
Twin reverse arterial perfusion (TRAP) sequence is a severe anomaly in monochorionic twins where one twin has profound corporeal underdevelopment and acardia. The normal "pump" co-twin provides blood flow to the acardiac twin through placental anastomoses which may lead to cardiac failure and pump twin demise as well as preterm delivery from severe polyhydramnios. Treatments include radiofrequency ablation, bipolar cord coagulation, and intrafetal laser with each aimed at occluding blood flow to the acardiac twin. However, none of these modalities has proven superior in terms of either pump twin survival or minimization of complications, including preterm premature rupture of membranes, preterm birth, or unexpected co-twin demise. The optimal timing of treatment is also unknown, without clear indications for intervention versus expectant management. Very early treatment of TRAP (i.e.,16 weeks) has been proposed to reduce first-trimester demise; however, this approach remains experimental. Further investigation is required to determine the best treatment and timing of intervention for TRAP.
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- 2022
76. The randomized Tracheal Occlusion To Accelerate Lung growth (TOTAL)-trials on fetal surgery for congenital diaphragmatic hernia: reanalysis using pooled data
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Greg Ryan, Anthony Johnson, Michael A. Belfort, Nicola Persico, Alexandra Benachi, Francesca Russo, Haruhiko Sago, Stuart B. Hooper, Philip DeKoninck, Pietro Bagolan, Tim Van Mieghem, Jan Deprest, Kypros H. Nicolaides, Eduard Gratacós, Przemyslaw Kosinski, Ben Van Calster, Christoph Berg, Glenn Gardener, Yves Ville, and Obstetrics & Gynecology
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medicine.medical_specialty ,fetoscopy ,preterm premature rupture of the membranes ,congenital diaphragmatic hernia ,law.invention ,Pulmonary hypoplasia ,Randomized controlled trial ,law ,Pregnancy ,medicine ,Humans ,Lung ,pulmonary hypoplasia ,fetal surgery ,fetoscopic endoluminal tracheal occlusion ,prenatal diagnosis ,Obstetrics ,business.industry ,ultrasound ,Fetoscopy ,Infant, Newborn ,Obstetrics and Gynecology ,Gestational age ,Congenital diaphragmatic hernia ,Infant ,Odds ratio ,Balloon Occlusion ,medicine.disease ,Confidence interval ,Hypoplasia ,Trachea ,randomized controlled trial ,Female ,business ,Live birth ,Hernias, Diaphragmatic, Congenital - Abstract
Background: Two randomized controlled trials compared the neonatal and infant outcomes after fetoscopic endoluminal tracheal occlusion with expectant prenatal management in fetuses with severe and moderate isolated congenital diaphragmatic hernia, respectively. Fetoscopic endoluminal tracheal occlusion was carried out at 27 +0 to 29 +6 weeks’ gestation (referred to as “early”) for severe and at 30 +0 to 31 +6 weeks (“late”) for moderate hypoplasia. The reported absolute increase in the survival to discharge was 13% (95% confidence interval, −1 to 28; P=.059) and 25% (95% confidence interval, 6–46; P=.0091) for moderate and severe hypoplasia. Objective: Data from the 2 trials were pooled to study the heterogeneity of the treatment effect by observed over expected lung-to-head ratio and explore the effect of gestational age at balloon insertion. Study Design: Individual participant data from the 2 trials were reanalyzed. Women were assessed between 2008 and 2020 at 14 experienced fetoscopic endoluminal tracheal occlusion centers and were randomized in a 1:1 ratio to either expectant management or fetoscopic endoluminal tracheal occlusion. All received standardized postnatal management. The combined data involved 287 patients (196 with moderate hypoplasia and 91 with severe hypoplasia). The primary endpoint was survival to discharge from the neonatal intensive care unit. The secondary endpoints were survival to 6 months of age, survival to 6 months without oxygen supplementation, and gestational age at live birth. Penalized regression was used with the following covariates: intervention (fetoscopic endoluminal tracheal occlusion vs expectant), early balloon insertion (yes vs no), observed over expected lung-to-head ratio, liver herniation (yes vs no), and trial (severe vs moderate). The interaction between intervention and the observed over expected lung-to-head ratio was evaluated to study treatment effect heterogeneity. Results: For survival to discharge, the adjusted odds ratio of fetoscopic endoluminal tracheal occlusion was 1.78 (95% confidence interval, 1.05–3.01; P=.031). The additional effect of early balloon insertion was highly uncertain (adjusted odds ratio, 1.53; 95% confidence interval, 0.60–3.91; P=.370). When combining these 2 effects, the adjusted odds ratio of fetoscopic endoluminal tracheal occlusion with early balloon insertion was 2.73 (95% confidence interval, 1.15–6.49). The results for survival to 6 months and survival to 6 months without oxygen dependence were comparable. The gestational age at delivery was on average 1.7 weeks earlier (95% confidence interval, 1.1–2.3) following fetoscopic endoluminal tracheal occlusion with late insertion and 3.2 weeks earlier (95% confidence interval, 2.3–4.1) following fetoscopic endoluminal tracheal occlusion with early insertion compared with expectant management. There was no evidence that the effect of fetoscopic endoluminal tracheal occlusion depended on the observed over expected lung-to-head ratio for any of the endpoints. Conclusion: This analysis suggests that fetoscopic endoluminal tracheal occlusion increases survival for both moderate and severe lung hypoplasia. The difference between the results for the Tracheal Occlusion To Accelerate Lung growth trials, when considered apart, may be because of the difference in the time point of balloon insertion. However, the effect of the time point of balloon insertion could not be robustly assessed because of a small sample size and the confounding effect of disease severity. Fetoscopic endoluminal tracheal occlusion with early balloon insertion in particular strongly increases the risk for preterm delivery.
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- 2022
77. Stimulated Raman Generation of Aqueous Singlet Oxygen Without Enhancers
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Aristides Marcano, Robinson Kuis, Anthony Johnson, and David Kingsley
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- 2022
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78. 'The Fight is Two Times as Hard': A Qualitative Examination of a Violence Syndemic Among Young Black Sexual Minority Men
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Katherine G. Quinn, Travonne Edwards, Anthony Johnson, Antoinette Spector, Lois Takahashi, Andrea Dakin, Nora Bouacha, Silvia Valadez-Tapia, and Dexter Voisin
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Clinical Psychology ,Applied Psychology - Abstract
Young Black men who have sex with men (YBMSM) are disproportionately impacted by violence, including violence rooted in anti-Black racism, sexual identity bullying, and neighborhood violence rooted in structural racism and inequities. These multiple forms of violence are frequently co-occurring and interactive creating syndemic conditions that can negatively impact HIV care. This qualitative study is based on in-depth interviews with 31 YBMSM, aged 16–30 years, living with HIV in Chicago, IL, to examine how violence has impacted their lives. Using thematic analysis, we identified five themes that reflect how YBMSM experience violence at the intersection of racism, homonegativity, socioeconomic status, and HIV status: (a) the experience of intersectional violence; (b) long histories of violence contributed to hypervigilance, lack of safety, and lack of trust; (c) making meaning of violence and the importance of strength; (d) normalizing violence for survival; and (e) the cyclical nature of violence. Our study highlights how multiple forms of violence can accumulate across an individual’s life and contribute to social and contextual situations that further contribute to violence and negatively impact mental health and HIV care.
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- 2023
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79. Fetoscopic myelomeningocele (fMMC) repair with human umbilical cord (fMMC-HUC) compared with open in-utero MMC repair (oMMC)
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Ramesha Papanna, Stephen A. Fletcher, Lovepreet Mann, Jeannine Garnett, Eric P. Bergh, Mary Austin, Brandon Miller, Jerrie Refuerzo, Anthony Johnson, Ranu Jain, and Kuojen Tsao
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Obstetrics and Gynecology - Published
- 2023
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80. Steroid Hormone Levels in Recipient Amniotic Fluid in Twin–Twin Transfusion Syndrome and Their Association with Preterm Delivery
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Eric P. Bergh, Roopali Donepudi, Elizabeth Thom, Lovepreet K. Mann, Cora MacPherson, Ramesha Papanna, Anthony Johnson, Jong H. Won, Mallory Hoffman, Sam Mesiano, and Kenneth J. Moise
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Adult ,medicine.medical_specialty ,Amniotic fluid ,Hydrocortisone ,medicine.medical_treatment ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,medicine ,Humans ,Prospective Studies ,Prospective cohort study ,Progesterone ,030219 obstetrics & reproductive medicine ,Estradiol ,Obstetrics ,business.industry ,Fetal surgery ,Pregnancy Outcome ,Proteins ,Obstetrics and Gynecology ,Estrogens ,Fetofetal Transfusion ,Odds ratio ,Consecutive case series ,Amniotic Fluid ,medicine.disease ,Logistic Models ,Premature birth ,Pediatrics, Perinatology and Child Health ,Premature Birth ,Female ,Steroids ,business ,Hormone - Abstract
Objective Preterm delivery following fetoscopic laser surgery (FLS) of twin–twin transfusion syndrome (TTTS) is associated with severe perinatal morbidity and mortality. The role of steroid hormones in amniotic fluid (AF) after FLS remains unknown. Study Design A prospective cohort study of consecutive case series of FLS for TTTS was performed from April 2012 to February 2017. Cases were divided into early (≤27 weeks) spontaneous preterm delivery (ED) and late delivery (LD; ≥34 weeks) following FLS and compared. AF supernatants were assessed for protein, estradiol, progesterone and cortisol levels (using the ELISA kit), and normalized to total protein levels to adjust for dilution. Results A total of 294 consecutive cases of FLS for TTTS in monochorionic–diamniotic twins were performed during the study period. AF was available in 44 ED patients and 50 LD patients. On logistic regression, ED was associated with higher normalized progesterone levels (odds ratio [OR]: 1.25; 95% confidence interval [CI]: 1.12–1.41), lower normalized cortisol (OR: 0.78; 95% CI: 0.64–0.96), and higher estradiol levels (OR: 1.3; 95% CI: 1.03–1.63). Conclusion Elevated AF normalized progesterone and estradiol, and lower normalized cortisol levels were associated with ED. This novel finding requires further exploration to establish the molecular mechanism operational in pregnancies complicated by TTTS to potentially prevent early preterm birth after fetal surgery.
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- 2019
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81. Development of Integrated Sustainability Measurement Hierarchy (ISMH) for Sustainable Engineering
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Anthony Johnson, Juhye Shin, and Dongha Shim
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Engineering ,Hierarchy ,Environmental Sustainability Index ,Development (topology) ,business.industry ,Triple bottom line ,Sustainability measurement ,Sustainable engineering ,Environmental economics ,business - Published
- 2019
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82. Variability in antenatal prognostication of fetal diaphragmatic hernia across the North American Fetal Therapy Network (NAFTNet)
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Dorothy I. Bulas, Beverly G. Coleman, Anthony Johnson, Michael V. Zaretsky, Alexandra Benachi, Greg Ryan, Foong-Yen Lim, Rodrigo Ruano, Nimrah Abbasi, Magda Sanz Cortes, Ahmet A. Baschat, and Tara A. Morgan
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medicine.medical_specialty ,Gestational Age ,Ultrasonography, Prenatal ,Area measurement ,Pregnancy ,Surveys and Questionnaires ,Infant Mortality ,Humans ,Medicine ,Diaphragmatic hernia ,Lung ,Fetal therapy ,Genetics (clinical) ,Fetal Therapies ,Fetus ,Image selection ,business.industry ,Obstetrics ,Infant ,Reproducibility of Results ,Obstetrics and Gynecology ,Congenital diaphragmatic hernia ,Prognosis ,medicine.disease ,medicine.anatomical_structure ,embryonic structures ,Female ,Hernias, Diaphragmatic, Congenital ,business ,Head ,Fetal medicine - Abstract
OBJECTIVE To evaluate variability in antenatal sonographic prognostication of congenital diaphragmatic hernia (CDH) within the North American Fetal Therapy Network (NAFTNet). METHODS NAFTNet centre were invited to complete a questionnaire and participate in videoconference calls, during which participants were observed while measuring lung area by ultrasound using the anteroposterior (AP) method, longest method, and trace method. Each center identified 1-2 experienced fetal medicine specialist(s) or medical imaging specialists locally to participate in the study. Practices were compared among NAFTNet centre within and without the fetal endoscopic tracheal occlusion (FETO) consortium. RESULTS Nineteen participants from 9 FETO center and 30 participants from 17 non-FETO center completed the survey and 31 participants were interviewed and observed while measuring sonographic lung area. All Centres measured observed-to-expected lung-to-head ratio (o/e LHR) or LHR for CDH prognostication. Image selection criteria for lung area measurement were consistent, including an axial section of the chest with clear lung borders and a 4-chamber cardiac view. Lung area measurement methods varied across NAFTNet, with most centre using longest (4/9 FETO vs. 13/29 non-FETO) or trace (3/9 FETO vs. 11/29 non-FETO) method. Centres differed in expected reference ranges for o/e LHR determination and whether the lowest, highest or average o/e LHR was utilized. CONCLUSION Variability in antenatal sonographic prognostication of CDH was identified across NAFTNet, indicating a need for consensus-based standardization.
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- 2019
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83. Certification Process of Fetal Centers in Texas and Developing National Guidelines
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KuoJen Tsao, Kenneth J. Moise, and Anthony Johnson
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Certification ,Process (engineering) ,MEDLINE ,Guidelines as Topic ,Legislation ,Prenatal care ,Hospitals, Special ,Maternity care ,03 medical and health sciences ,0302 clinical medicine ,Nursing ,Pregnancy ,Health care ,Humans ,Medicine ,030212 general & internal medicine ,Physician's Role ,Human services ,Patient Care Team ,Fetal Therapies ,030219 obstetrics & reproductive medicine ,business.industry ,Professional Practice Location ,Obstetrics and Gynecology ,Prenatal Care ,Texas ,Obstetrics ,Fetal Diseases ,Intervention (law) ,Female ,Health Facilities ,business ,Fetal medicine - Abstract
In recent years there has been a growing trend for physician groups to develop guidelines to establish levels of hospital care based on health care team expertise and physical resources. A growing number of fetal centers have been established as the field of fetal medicine continues to evolve. In 2015, the state of Texas began an initiative to develop guidelines for the certification of fetal centers. After significant input from clinicians, a series of rules was developed by the Department of Health and Human Services. Site visits for certification are expected to begin in the near future. Specific leadership, personnel, and facility requirements were developed. Maternal as well as fetal and neonatal outcomes were mandated to be transparent to the public through websites. A commitment to ongoing research and the education of future fetal interventionists was included. Lessons learned from this process should be considered when a national fetal center certification process is developed. Although the Texas legislation defined only a single level of fetal center, a multi-tier designation system, much like that used to define levels of neonatal and maternity care, would be a more acceptable approach. A level I center would offer diagnostic and needle-based procedures, and a level III center would offer all evidence-based fetal procedures. Because the field of fetal medicine and intervention continues to advance rapidly, a national certification process for fetal centers should be considered.
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- 2019
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84. Effect of intra‐amniotic fluid pressure from polyhydramnios on cervical length in patients with twin–twin transfusion syndrome undergoing fetoscopic laser surgery
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Lovepreet K. Mann, R. Donepudi, E. P. Bergh, Kenneth J. Moise, R. R. Jain, Ramesha Papanna, and Anthony Johnson
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Adult ,Polyhydramnios ,medicine.medical_specialty ,Amniotic fluid ,medicine.medical_treatment ,Hydrostatic pressure ,Population ,Gestational Age ,Cervix Uteri ,Fetoscopy ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,Pressure ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Cervical cerclage ,Prospective Studies ,030212 general & internal medicine ,Ultrasonography, Doppler, Color ,Prospective cohort study ,education ,education.field_of_study ,Laser Coagulation ,030219 obstetrics & reproductive medicine ,Radiological and Ultrasound Technology ,medicine.diagnostic_test ,business.industry ,Obstetrics and Gynecology ,Gestational age ,Fetofetal Transfusion ,General Medicine ,Amniotic Fluid ,medicine.disease ,Surgery ,Treatment Outcome ,Reproductive Medicine ,Cervical Length Measurement ,Pregnancy, Twin ,Female ,business - Abstract
OBJECTIVES To determine the relationship between intra-amniotic pressure and cervical length (CL) in patients with twin-twin transfusion syndrome (TTTS) undergoing fetoscopic laser photocoagulation (FLP), and to identify pre- or intraoperative factors associated with increased intra-amniotic pressure in this population. METHODS This was a prospective cohort study of patients undergoing FLP for TTTS. Exclusion criteria were triplet or higher-order gestation and prior cervical cerclage, amnioreduction or FLP procedure. CL was assessed using preprocedure transvaginal ultrasound. Intra-amniotic pressure measurements were obtained on initial placement of the trocar into the amniotic cavity, using a direct hydrostatic pressure gauge. The relationship between intra-amniotic pressure and CL was assessed using multivariate linear regression analysis, including relevant preoperative and intraoperative variables. RESULTS In total, 283 pregnancies met the inclusion criteria. Quintero stage of TTTS was I in 33 pregnancies, II in 88, III in 150 and IV in 12. Mean gestational age (GA) at FLP was 20.7 ± 3 weeks. Mean intra-amniotic pressure was 23.1 ± 9 mmHg. On unadjusted linear regression analysis, there was no significant association between intra-amniotic pressure and preoperative CL (P = 0.24) or GA at delivery (P = 0.22). On multivariate analysis, the factors associated significantly with intra-amniotic pressure were: number of prior term deliveries (P = 0.03), recipient maximum vertical pocket (P
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- 2019
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85. Rotator cuff tendinopathy: magnitude of incapability is associated with greater symptoms of depression rather than pathology severity
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Mitchell Rohrback, Sina Ramtin, Abed Abdelaziz, Lars Matkin, David Ring, Tom J. Crijns, and Anthony Johnson
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Adult ,Muscular Atrophy ,Rotator Cuff ,Depression ,Tendinopathy ,Humans ,Reproducibility of Results ,Orthopedics and Sports Medicine ,Surgery ,General Medicine ,Retrospective Studies ,Rotator Cuff Injuries - Abstract
Population-based studies have established that rotator cuff tendinopathy develops in most persons during their lifetimes, it is often accommodated, and there is limited correspondence between symptom intensity and pathology severity. To test the relationship between effective accommodation and mental health on its continuum, we studied the relative association of magnitude of capability with symptoms of anxiety or depression compared with quantifications of rotator cuff pathology such as defect size, degree of retraction, and muscle atrophy among patients presenting for specialty care.We analyzed a retrospective cohort of 71 adults seeking specialty care for symptoms of rotator cuff tendinopathy who underwent a recent magnetic resonance imaging scan of the shoulder and completed the following questionnaires: Patient-Reported Outcomes Measurement Information System (PROMIS) Global Health questionnaire (a measure of symptom intensity and magnitude of capability, consisting of mental and physical health subscores), Generalized Anxiety Disorder questionnaire (measuring symptoms of anxiety), and Patient Health Questionnaire (measuring symptoms of depression). Two independent reviewers measured the sagittal length of the rotator cuff defect and tendon retraction in millimeters on magnetic resonance imaging scans (excellent reliability) and rated rotator cuff muscle atrophy and fatty infiltration (more limited reliability), and we used the average measurement or rating for each patient. Multivariable statistical models were used to identify factors associated with the PROMIS Global Health score and mental and physical health subscores.Accounting for potential confounding in multivariable analysis, lower PROMIS Global Health total scores and physical health subscale scores were independently associated with greater symptoms of depression but not with measures of pathology. Lower PROMIS mental health subscale scores were independently associated with greater symptoms of anxiety and greater muscle atrophy.The observation that magnitude of incapability among patients seeking care for symptoms of rotator cuff pathology is associated with symptoms of depression but not with measures of the severity of the rotator cuff pathology suggests that treatment strategies for patients who seek care for symptoms of rotator cuff tendinopathy may be incomplete if they do not anticipate and address mental health.
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- 2021
86. Transcorneal Freezing in Aged Rabbits as a Platform for Evaluating Corneal Endothelial Cell Therapeutics
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Lauren E, Cornell, Eric J, Snider, Jennifer S, McDaniel, Randolph, Glickman, Anthony, Johnson, and David, Zamora
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Cornea ,Endothelium, Corneal ,Freezing ,Animals ,Endothelial Cells ,Rabbits ,Corneal Injuries - Abstract
Transcorneal freezing is a common technique used in rabbits to induce damage to the corneal endothelium. Previous studies have been performed with a range of freezing temperatures, times, and rabbit ages. Here, we aimed to characterize the aged rabbit endothelium after transcorneal freezing to establish an innate corneal endothelial cell regrowth rate and propose it as a mechanism for evaluation of therapeutic efficacy in rabbit models.Central corneas of anesthetized New Zealand White rabbits (n=3) aged 18-24 months were exposed to nitrous oxide cooled probes for 30 seconds. Animals were assessed by in vivo confocal microscopy, applanation tonometry, specular microscopy, optical coherence tomography, and histology. The contralateral eye acted as a control. Images were taken immediately before and after injury and on days 2, 4, 7, 11, and 14.Following transcorneal freezing, there was a significant decrease in corneal endothelium density and a temporary increase in corneal thickness. Endothelial density decreased by 95% immediately after injury compared to controls and showed linear recovery over 14 days, reaching a 38% reduction by day 14. There was a significant increase in pleomorphism across all time points post-injury. Conversely, corneal thickness increased two days post injury but recovered at all later time points. Intraocular pressure was not affected throughout.This corneal endothelium injury platform is ideal for injury and therapeutic research as it can be rapidly performed, and has minimal impact on corneal thickness and intraocular pressure. Due to innate rabbit endothelial regrowth, it is vital to establish corneal endothelial recovery rate before evaluating therapeutics for efficacy in this model system.
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- 2021
87. Light and microwave driven spin pumping across FeGaB–BiSb interface
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Vinay Sharma, Weipeng Wu, Prabesh Bajracharya, Duy Quang To, Anthony Johnson, Anderson Janotti, Garnett W. Bryant, Lars Gundlach, M. Benjamin Jungfleisch, and Ramesh C. Budhani
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Condensed Matter - Materials Science ,Physics and Astronomy (miscellaneous) ,Materials Science (cond-mat.mtrl-sci) ,FOS: Physical sciences ,02 engineering and technology ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect ,021001 nanoscience & nanotechnology ,01 natural sciences ,Condensed Matter::Materials Science ,0103 physical sciences ,Condensed Matter::Strongly Correlated Electrons ,General Materials Science ,010306 general physics ,0210 nano-technology - Abstract
3-D topological insulators (TI) with large spin Hall conductivity have emerged as potential candidates for spintronic applications. Here, we report spin to charge conversion in bilayers of amorphous ferromagnet (FM) Fe_{78}Ga_{13}B_{9} (FeGaB) and 3-D TI Bi_{85}Sb_{15} (BiSb) activated by two complementary techniques: spin pumping and ultrafast spin-current injection. DC magnetization measurements establish the soft magnetic character of FeGaB films, which remains unaltered in the heterostructures of FeGaB-BiSb. Broadband ferromagnetic resonance (FMR) studies reveal enhanced damping of precessing magnetization and large value of spin mixing conductance (5.03 x 10^{19} m^{-2}) as the spin angular momentum leaks into the TI layer. Magnetic field controlled bipolar dc voltage generated across the TI layer by inverse spin Hall effect is analyzed to extract the values of spin Hall angle and spin diffusion length of BiSb. The spin pumping parameters derived from the measurements of the femtosecond light-pulse-induced terahertz emission are consistent with the result of FMR. Kubo-Bastin formula and tight-binding model calculations shed light on the thickness-dependent spin-Hall conductivity of the TI films, with predictions that are in remarkable agreement with the experimental data. Our results suggest that room temperature deposited amorphous and polycrystalline heterostructures provide a promising platform for creating novel spin orbit torque devices., 9 figures
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- 2021
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88. Care Levels for Fetal Therapy Centers
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Ahmet A. Baschat, Sean B. Blackwell, Debnath Chatterjee, James J. Cummings, Stephen P. Emery, Shinjiro Hirose, Lisa M. Hollier, Anthony Johnson, Sarah J. Kilpatrick, Francois I. Luks, M. Kathryn Menard, Lawrence B. McCullough, Julie S. Moldenhauer, Anita J. Moon-Grady, George B. Mychaliska, Michael Narvey, Mary E. Norton, Mark D. Rollins, Eric D. Skarsgard, KuoJen Tsao, Barbara B. Warner, Abigail Wilpers, and Greg Ryan
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Fetal Membranes, Premature Rupture ,Fetal Therapies ,Pregnancy ,Management of Technology and Innovation ,Infant, Newborn ,Obstetrics and Gynecology ,Humans ,Premature Birth ,Female ,Prenatal Care ,Child ,Infant, Premature ,Article - Abstract
Fetal therapies undertaken to improve fetal outcome or to optimize transition to neonate life often entail some level of maternal, fetal or neonatal risk. A fetal therapy center needs access to resources to carry out such therapies and to manage maternal, fetal or neonatal complications that might arise, either related to the therapy per se or as part of the underlying fetal or maternal condition. Accordingly, a fetal therapy center requires a dedicated operational infrastructure and necessary resources to allow for appropriate oversight, monitoring of clinical performance, and to facilitate multidisciplinary collaboration between the relevant specialties. Three care levels for fetal therapy centers are proposed in order to match the anticipated care complexity with appropriate resources to achieve an optimal outcome at an institutional and regional level. A level 1 fetal therapy center should be capable of offering fetal interventions that may be associated with obstetric risks of preterm birth or membrane rupture, but which would be very unlikely to require maternal medical subspecialty or intensive care, with neonatal risks not exceeding those of moderate prematurity. A level 2 center should have the incremental capacity to provide maternal intensive care and to manage extreme neonatal prematurity. A level 3 therapy center should offer the full range of fetal interventions (including open fetal surgery), and could manage any of the associated maternal complications and comorbidities, as well as have access to neonatal and pediatric surgical intervention including indicated surgery for neonates with congenital anomalies.
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- 2021
89. Public Opinions of Black Democrats in Texas: An Empirical Investigation
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Michael O. Adams, L. Anthony Johnson, and Gbolahan S. Osho
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On August 25, 1979, a group of African-American leaders met at the Holiday Inn in Duncanville, Texas. Robert Malson, Assistant Director of Domestic Policy for the White House, was the speaker. The vision was enthusiastically embraced by those in attendance. As with most coalitions, the Texas coalition of black Democrats, which exists under the auspices of the Texas Democratic Party, benefits from certain advantages: with chapters in most counties in Texas, it certainly enjoys a large base of support, networks and connections and projects the image of strength in numbers among its members. In 2018, Black candidates stepped up across the State to lead. In Texas, Black Democrats running for office included: 18 candidates for US Congress, 9 candidates for statewide office, 34 candidates for Texas Legislature, and hundreds more Black Democrats for county & local offices. In 2020, the Coalition surveyed its members to determine what we were thinking as Black Texan Democrats. Therefore, the survey is an attempt to define an agenda to support our aggressive campaigns to serve as strong advocates for our community. The research concluded that in order to continue to be relevant in Texas politics, the coalition must grow and sustain its membership, continue to develop its agenda around issues that are central to the interests of its members as well as the agenda of the Democratic Party including justice, opportunity, equity and economic prosperity.
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- 2022
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90. Social Network Analysis with Applications
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Ian McCulloh, Helen Armstrong, Anthony Johnson
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- 2013
91. The Effects of Air Pollution on Mortality in Socially Deprived Urban Areas in Hong Kong, China
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Wong, Chit-Ming, Ou, Chun-Quan, Chan, King-Pan, Chau, Yuen-Kwan, Thach, Thuan-Quoc, Yang, Lin, Chung, Roger Yat-Nork, Thomas, Graham Neil, Peiris, Joseph Sriyal Malik, Wong, Tze-Wai, Hedley, Anthony Johnson, and Lam, Tai-Hing
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- 2008
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92. Short-Term Effects of Particulate Air Pollution on Male Smokers and Never-Smokers
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Wong, Chit-Ming, Ou, Chun-Quan, Lee, Nga-Wing, Chan, King-Pan, Thach, Thuan-Quoc, Chau, Yuen-Kwan, Ho, Sai-Yin, Hedley, Anthony Johnson, and Lam, Tai-Hing
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- 2007
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93. Prediction of fetal complications in monochorionic-diamniotic twins using sonographic characteristics
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Clifton O. Brock, Eric P. Bergh, Dejian Lai, Anthony Johnson, Rodrigo Ruano, Sean C. Blackwell, and Ramesha Papanna
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Obstetrics and Gynecology - Published
- 2022
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94. The significance of hindbrain herniation reversal following prenatal surgery for fetal neural tube defects
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Clifton O. Brock, Jeannine Garnett, Samantha Hentosh, Eric P. Bergh, Stephen A. Fletcher, Mary Austin, Kuojen Tsao, Anthony Johnson, Rodrigo Ruano, Katrina Hughes, Rajan Patel, and Ramesha Papanna
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Obstetrics and Gynecology - Published
- 2022
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95. Preterm birth after in-utero spina bifida repair: outcomes and risk factors
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Sami Backley, Jeannine Garnett, Samantha Hentosh, Michal Fishel Bartal, Stephen A. Fletcher, Kuojen Tsao, Mary Austin, Ranu Jain, Anthony Johnson, Rodrigo Ruano, Ramesha Papanna, and Eric P. Bergh
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Obstetrics and Gynecology - Published
- 2022
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96. Mortality by mode of delivery among infants with spina bifida in Texas
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Adriana Lopez, Laura E. Mitchell, Michael D. Swartz, Renata H. Benjamin, A. J. Agopian, Peter H. Langlois, KuoJen Tsao, and Anthony Johnson
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Male ,0301 basic medicine ,congenital, hereditary, and neonatal diseases and abnormalities ,Embryology ,medicine.medical_specialty ,Health, Toxicology and Mutagenesis ,Gestational Age ,030105 genetics & heredity ,Birth certificate ,Toxicology ,Article ,03 medical and health sciences ,Pregnancy ,Birth Weight ,Humans ,Medicine ,Spinal Dysraphism ,reproductive and urinary physiology ,Proportional Hazards Models ,Cesarean Section ,business.industry ,Obstetrics ,Proportional hazards model ,Spina bifida ,Hazard ratio ,Infant, Newborn ,Parturition ,Infant ,Gestational age ,Delivery, Obstetric ,medicine.disease ,Texas ,Confidence interval ,Infant mortality ,030104 developmental biology ,Pediatrics, Perinatology and Child Health ,Female ,Death certificate ,business ,Live Birth ,Developmental Biology - Abstract
Background It is hypothesized that cesarean delivery may reduce mortality among infants with spina bifida (e.g., by reducing trauma to the open lesion); however, few studies have assessed this relationship. Methods We used the Texas Birth Defects Registry to identify neonates with spina bifida born between 1999 and 2014. The mode of delivery (main exposure) was abstracted from each subject's birth certificate. The vital status (main outcome) was determined based on the presence or absence of a death certificate. When a death certificate was present, survival time was calculated by subtracting the date of birth from the date of death. We then conducted multivariable Cox proportional hazards regression to estimate the adjusted hazard ratio between cesarean delivery and death prior to 29 days. We adjusted for maternal race/ethnicity, maternal education, gestational age/birthweight, and breech presentation. This analysis was repeated for death prior to 365 days. Results We analyzed 1,983 nonsyndromic, liveborn neonates with spina bifida, and 68% of these neonates were delivered by cesarean. After adjusting for potential confounders, the adjusted hazard ratio [aHR] for death prior to 29 days was 0.77 (95% confidence interval [CI] 0.49, 1.21) and the aHR for death prior to 365 days was 0.93 (95% CI 0.63, 1.38) comparing infants delivered by cesarean to those delivered vaginally. Conclusions Despite a lack of strong prior epidemiologic evidence, cesarean rates for neonates with spina bifida were high. Further investigations of the relationship between mode of delivery and infant outcomes, including mortality, complications, and long-term prognosis, are warranted.
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- 2019
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97. Determination of Polyetheretherketone (PEEK) mechanical properties as a denture material
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Anthony Johnson, Saja A. Muhsin, Nuno Sereno, Paul V. Hatton, and Duncan J. Wood
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Pressing ,Materials science ,lcsh:R ,Modulus ,lcsh:Medicine ,Izod impact strength test ,030206 dentistry ,Bending ,medicine.disease_cause ,lcsh:RK1-715 ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Flexural strength ,Mold ,lcsh:Dentistry ,Ultimate tensile strength ,medicine ,Peek ,Original Article ,Composite material ,General Dentistry - Abstract
Purpose: To optimize the gypsum mold temperatures for pressed PEEK, and to estimate the impact, tensile strength and flexural properties of pressed and milled PEEK. Where appropriate, these properties were compared with those of PMMA. Materials and Methods: Since the mold temperature could affect the properties of the injected parts, the temperature of 20 gypsum specimens was monitored using the multi-thermocouple system (n = 5). A total of 210 specimens were prepared for mechanical tests according to the ISO standard for denture base polymer (n = 10). The Izod impact, tensile strength, and flexural behavior were assessed. PEEK-OptimaNI1 (PEEK-pressed) was tested after processing via the pressing method at4 different mold temperatures. Machining PEEK-Juvora (PEEK-milled) specimens were prepared using the CAD-CAM production method. Data were analyzed via one-way ANOVA performed at a confidence level of 95% and a significant P-value of (P ≤ 0.05). Results: In comparison to the furnace temperature more heat was required to preheat the gypsum mold up to 100, 150, 175 and 200 °C for pressing purposes. The highest impact strength was 5.7 kJ/m2 for PEEK-pressed at 100 °C mold temperature and 4 kJ/m2 for PEEK-milled. The latter had a higher tensile strength of 118 MPa. The best result for PEEK-pressed was 97 MPa at 200 °C mold temperature. Under a 4-point bending test, Young’s modulus of PEEK-milled was 5591 MPa, while the highest for PEEK-pressed was 4936 MPa at 200 °C mold temperature. Conclusions: Compared to PMMA, given the superior mechanical properties of PEEK, it may become the material of choice for future use. Dentures constructed from PEEK polymer could well be routinely constructed in the near future. Keywords: Polyetheretherketone, Denture base material, Impact strength, 4-point bend, Tensile strength, Mold temperature, Injection molding, CAD-CAM
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- 2019
98. Understanding Ditch Maintenance Decisions of Local Highway Agencies for Improved Water Resources across New York State
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David P. Orr, Rebecca L. Schneider, and Anthony Johnson
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050210 logistics & transportation ,geography ,geography.geographical_feature_category ,Mechanical Engineering ,media_common.quotation_subject ,05 social sciences ,Flooding (psychology) ,Ditch ,0211 other engineering and technologies ,02 engineering and technology ,Training (civil) ,Water resources ,Incentive ,State (polity) ,021105 building & construction ,0502 economics and business ,Drainage ,Water pollution ,Environmental planning ,Civil and Structural Engineering ,media_common - Abstract
Networks of roadside ditches criss-cross the landscape, and have played a significant but previously unrecognized role in flooding and water pollution. This study surveyed town and county highway professionals across New York State (NYS) to determine their ditch management practices. There was a 41% response rate from the 999 highway staff surveyed, representing 54 of the 57 counties statewide. 36.8% of the agencies reported using full scraping or reshaping without reseeding as their primary method of ditch management and half scraped their ditches on average once every 1 to 4 years. It is estimated that one-third to one-half of the roadside ditches across upstate NYS are therefore in fair to poor condition. This translates to thousands of miles of exposed substrate vulnerable to storms, acting as a source of sediment and pollution. Limited resources including time, labor, equipment, and money were the primary reasons given for the practices used. Additional challenges identified included interactions with landowners over rights-of-way, farm-field drainage, and increasing frequency of downpours. A comprehensive, state-wide program will be necessary to actualize ditch improvement. It will require a complete toolbox of strategies, from financial support and training to regulatory mandates and penalties, and needs to include a ditch inventory system. Incentives in the form of grants and shared services should be offered by state agencies working collaboratively with local governments. Valuing highway department managers as water stewards and supporting the improved management of roadside ditches can provide an important new mechanism for protecting NYS’s water resources.
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- 2019
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99. Reproducibility of fetal lung-to-head ratio in left diaphragmatic hernia across the North American Fetal Therapy Network (NAFTNet)
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Prakesh S. Shah, Rodrigo Ruano, Magda Sanz Cortes, Alexandra Benachi, Greg Ryan, Anthony Johnson, Xiang Y. Ye, Julien Saada, Haleh Sangi-Haghpeykar, and Nimrah Abbasi
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0301 basic medicine ,Intraclass correlation ,Diaphragmatic breathing ,030105 genetics & heredity ,Ultrasonography, Prenatal ,03 medical and health sciences ,0302 clinical medicine ,Pregnancy ,medicine ,Humans ,Diaphragmatic hernia ,Lung ,Fetal therapy ,Genetics (clinical) ,Reproducibility ,030219 obstetrics & reproductive medicine ,business.industry ,Ultrasound ,Reproducibility of Results ,Obstetrics and Gynecology ,Congenital diaphragmatic hernia ,medicine.disease ,medicine.anatomical_structure ,embryonic structures ,Female ,Hernias, Diaphragmatic, Congenital ,Nuclear medicine ,business ,Head - Abstract
Objective To determine the antenatal sonographic lung area measurement method in left congenital diaphragmatic hernia (CDH) with the highest interrater agreement among North American Fetal Therapy Network (NAFTNet) centers within and outside the fetoscopic tracheal occlusion (FETO) consortium and in comparison with a European "expert" reviewer (ER). Methods Nineteen members from nine FETO consortium centers and 29 reviewers from 17 non-FETO centers reviewed ultrasound clips of the chest from 13 fetuses with isolated left CDH and were asked to select a static plane for lung area measurement using anteroposterior (AP), longest, and trace methods. Interrater agreement in lung area measurements was determined using intraclass correlation coefficient (ICC). Bland-Altman analysis was used to evaluate mean difference (bias) between NAFTNet reviewers and ER. Results Among FETO centers, agreement was highest using trace (ICC 0.94; 95% CI, 0.83-0.98), followed by longest (ICC 0.89; 95% CI, 0.75-0.97) and lowest for A-P (ICC 0.83; 95% CI, 0.67-0.94). Similar trends were noted in non-FETO centers. When compared with ER, bias was lowest for trace: 14 ± 38 mm2 and 19 ± 36 mm2 for FETO and non-FETO centers, respectively. Conclusion The trace method demonstrated the highest interrater agreement and lowest bias for lung area estimation in left CDH across NAFTNet.
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- 2019
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100. Poster 177: The Impact of Pre-Referral Diagnostic Tests on Care of Atraumatic Shoulder Pain
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Claire Ryan, Lars Matkin, David Ring, Amirreza Fatehi, Anthony Johnson, and Erik Slette
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Orthopedics and Sports Medicine - Abstract
Objectives: There is a paucity of evidence quantifying the utility and value of pre-referral imaging tests among patients with atraumatic shoulder pain. The primary aim of this study was to assess the prevalence and relative influence of radiographs and MRIs obtained prior to referral to an orthopedic specialist among patients with atraumatic shoulder pain. We hypothesized that there are no patient factors independently associated with undergoing a pre-referral MRI or radiograph. Similarly, there are no factors associated with change of care based on imaging findings, nor do patient factors influence post-referral imaging. Methods: A total of 665 consecutive new adult patients age 35 and older presenting to a single specialty care clinic were included in the study cohort. PROMIS Global Health, PROMIS Mental Health, Patient Health Questionnaire (symptoms of depression), and Generalized Anxiety Disorder questionnaire were completed at the first specialty care visit. Pre-referral shoulder imaging studies were obtained in 462 of 665 (69%) patients; 49% (n = 324) had radiographs and 21% (n = 138) had MRI. We used logistic regression to identify factors independently associated with prereferral imaging and post-referral imaging. We also recorded whether or not pre-referral imaging changed treatment. Results: Pre-referral MRI was associated with worse overall health (P=0.012), greater symptoms of depression (P=0.049), and longer duration of symptoms (P=0.0072). Pre-referral radiographs were associated with worse PROMIS Global Physical Health (PConclusions: The finding that patient factors, including symptoms of depression or anxiety and poorer overall health correlated with pre-referral imaging suggests that non-specialists may feel pressed to order imaging when patients are more incapable, worried and despairing, perhaps to demonstrate compassion, and possibly in an attempt to prioritize specialty care. Specialists were less influenced by patient factors in ordering imaging tests, perhaps due to a more selective and discerning use of tests largely for planning surgery on discrete pathology. Given that pre-referral imaging does little to influence specialist management, a preferred approach may be immediate specialist referral or electronic consultation without imaging when typical supportive treatments such as a simple set of rotator cuff strengthening exercises are unsatisfying to the patient.
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- 2022
- Full Text
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