Abstract: Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least 4 m. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the 6.5 m James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 yr, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.

Abstract: The semiconductor tracker (SCT) is one of the tracking systems for charged particles in the ATLAS detector. It consists of 4088 silicon strip sensor modules. During Run 2 (2015–2018) the Large Hadron Collider delivered an integrated luminosity of 156 fb -1 to the ATLAS experiment at a centre-of-mass proton-proton collision energy of 13 TeV. The instantaneous luminosity and pile-up conditions were far in excess of those assumed in the original design of the SCT detector. Due to improvements to the data acquisition system, the SCT operated stably throughout Run 2. It was available for 99.9% of the integrated luminosity and achieved a data-quality efficiency of 99.85%. Detailed studies have been made of the leakage current in SCT modules and the evolution of the full depletion voltage, which are used to study the impact of radiation damage to the modules.

Abstract: Flare frequency distributions represent a key approach to addressing one of the largest problems in solar and stellar physics: determining the mechanism that counterintuitively heats coronae to temperatures that are orders of magnitude hotter than the corresponding photospheres. It is widely accepted that the magnetic field is responsible for the heating, but there are two competing mechanisms that could explain it: nanoflares or Alfvén waves. To date, neither can be directly observed. Nanoflares are, by definition, extremely small, but their aggregate energy release could represent a substantial heating mechanism, presuming they are sufficiently abundant. One way to test this presumption is via the flare frequency distribution, which describes how often flares of various energies occur. If the slope of the power law fitting the flare frequency distribution is above a critical threshold, α = 2 as established in prior literature, then there should be a sufficient abundance of nanoflares to explain coronal heating. We performed 〉 600 case studies of solar flares, made possible by an unprecedented number of data analysts via three semesters of an undergraduate physics laboratory course. This allowed us to include two crucial, but nontrivial, analysis methods: preflare baseline subtraction and computation of the flare energy, which requires determining flare start and stop times. We aggregated the results of these analyses into a statistical study to determine that α = 1.63 ± 0.03. This is below the critical threshold, suggesting that Alfvén waves are an important driver of coronal heating.

Abstract: List of abstracts and authors:1. Comparative benefits of Atypical antipsychoticsDiana P Morrison2. Evidence-based management of depression in SchizophreniaAndre F Joubert3. Second generation Antipsychotics: An African updateDave Swingler4. The drug management of patients with HIV/Aids in the Mental Health Care setting: A therapeutic challengeDenise White5. New developments in the treatment of Bipolar depressionJospeh R Calabrese6. Dual action antidepressants: Faster onset, more remission, better value?Roger M Pinder7. Antisocial personality disorder: A reviewDonald W Black8. The South African study of stress and health: An overviewDavid R Williams9. Ugliness is in the eye of the beholder: Psychiatric apsects of body image disturbanceDavid Castle10. Over diagnosed or under recognized? Treating ADHDDora Wynchank11. The contagious effects of trauma and their impact on human service organisationsKerry Gibson12. Temporal lobe epilepsy in adolescence - 'Understanding the narrative'Helen Clark13. The effectiveness of treatment programs for Methaqualone (Mandrax) dependenceGreg McCarthy, Nandi Siegfried, Bronwyn Myers14. Community influence on alcohol and marijuanaAlan J Flisher, Robyn Mallett, Gary King, Neo Morojele, Martie Muller, Carl Lombard15. Psychiatric presentations of medical illnessSebastian Akalula16. Imaging of brain function using SpectJames Warwick17. Selected neuropsychological test performances and SSRI usageTheophilus Lazarus18. Comparative effectiveness and safety of antipsychotic treatments for outpatient SchizophreniaFrans Korb, Adel Sadak, Aly Akram, Sunar Birsoz, Abderrahmane Belaid19. Evidence-based mental healthcare - What do you know, think, feel?Nandi Siegfried, George Swingler, Soraya Seedat, Martie Muller, Rachel Churchill, Dan Stein20. Competitions Act - Anti-competitive health care practicesZ Nthakwana21. Unique approach to mental wellness by medical SchemesPetro Kempen22. What happens to my medical aid contribution?Eugene Allers23. Financial issues in a modern private practiceMike Edwards24. Transcranial magnetic stimulation: Uses in brain function research and medical interventionAlan St Clair Gibson25. The Neurochemistry of dreams: Implications for PsychiatryMark Solms26. Tenascin-R expression in the Central Nervvous system of lower vertebratesRuth Jarvis, N-. Hsu, P. Pesheva and D.M. Lang25. Localisation of the Nogo-A receptor in Neronal Lipid raftsEdward Nyatia, D.M. Lang26. Characterising an animal model for early life trauma using time dependent sensitisationJoachim D.K. Uys, Willie M.U. Daniels, Dan J. Stein27. Tolmetin affords protection against Quinoclinic acid induced Neurotoxixity in Rat brainAmichand Dairam, S Daya28. Acetaminophen and aspirin inhibit superoxide anion generation and Lipid Peroxidation, and protect against 1-Methyl-4Phenyl Pyridinim-induced Dopaminergic Neurotoxicity in ratsH. Maharaj, D.S. Maharaj, K. S. Saravanan, K.P. Mohanakumar, S. Daya29. Can exercise provide Neuroprotection in a rat model for Parkinson's disease?M Mabandla, L Kellaway, A St Clair Gibson, M Lambert, V Russell30. Treatment of rapid cycling Bipolar disorderJoseph R. Calabrese31. Depression as a Neurodegenerative Disorder: The need for achieving remissionRoger M Pinder32. Side-effects induced by modern antidepressants- Overview and managementFranco Colin33. The Placebo response in antidepressant clinical trialsRobin Emsley34. Impulse control disorders: An overviewDonald W. Black35. Post traumatic stress disorder: The Wits trauma clinic experienceUgash Subramaney36. Post traumatic stress disorder among recently diagnosed patients with HIV in South AfricaSoraya Seedat, Bo Olley, D J Stein37. Improving outcome in SchizophreniaDiana P Morrison38. Reviewing post Graduate trainingCliff W Allwood39. Ethics in HIV ResearchKeimanthro Moodley40. Improving and maintaining ethical standrads in Psychiatric researchTuviah Zabow=============================================================Posters: Neurosciences section (Presenting author only)1. Blunted Acth response correlates with altered Neurotransmitter function in maternally separatedratsW M U Daniels2. A mechanism for zinc toxicity in Neuroblastoma cellsW M U Daniels3. The effects of Hypericum Perforatum, Quercetin, and Fluoxetine on receptor densities in the Rat BrainL Heiderman4. Trichotillomania and obsessive-compulsive disorder: Clinical and genetic comparisons within a South African populationS M J Hemmings5. Expression of Nogo-A in the amphibian central nervous systemN. J. Hsu6. Biochemical model for inflammation of the brain: The role of iron, transferring and toxiferring in Lipid PeroxidationS J Van Rensburg7. Improvement in Alzheimer's disease patients with antioxidant supplementation over 15 monthsS J Van Rensburg8. The Placebo effect - Is it all in the mind?S J Van Rensburg9. Very low serum iron concentrations in elderly patients with active CarcinomaS J van Rensburg10. Melatonin affords protection against Rotenone-induced NeurotoxicityR John11. Effect of enriched environment on Ca uptake via NMDA receptors into barrel cortex slices of spontaneously HypertensiveratsM Lehohla12. Effects of Methylpenidate in a rat model for Attention Deficit Hyperactivity DisorderG. L. S. Lelaka13. 6-Hydroxymelatonin converts Fe (III) to Fe(II) and reduces iron-induced Lipid PeroxidationD S Maharaj14. Metrofinate Potentiates Quinolinic Acid and Potassium Cyanide induced NeurotoxicityA Ramsunder15. The effect of chronic Intra-Amylgdala CRF injections on rat behaviour and HPA-Axis functionL Richter16. Effect of Glutamate in the Prefrontal Cortex of a rat model for Attention-Deficit Hyperactivity DisorderV Russell17. An investigation into the relationship between Corticosterone and Neuron Cell deathP J Van Vuuren=============================================================41. Blunted Acth response correlates with altered Neurotransmitter function in maternally separated RatsW M U Daniels, C Y Pietersen, M E Carstens, D J Stein42. A mechanism for Zinc Toxicity in NeuroBlastoma CellsW M U Daniels, J Hendricks, R Salie, S J Van Rensburg43. The effects of Hypericum Perforatum, Quercetin and Fluoxetine on receptor densities in the rat brainL Heideman and S Daya44. Trichotillomania and obsessive-compulsive disorder: Clinical and genetic comparisons withn a South African populationS M J Hemmings, C J Kinnear, C Lochner, H Moolman-Smook, D J H Niehaus, V Corfield, D J Stein45. Expression of Nogo-A in the amphibian central nervous systemN. J. Hsu, R Jarvis, D. M. Lang46. Biochemical model for inflammation of the brain: The role of iron, transferring and Toxiferring in Lipid PeroxidationS J Van Rensburg, R T Erasmus, J M van Zyl, D Hon, W M U Daniels, F C V Potocnik, M J Kotze, N J De Villiers, P R Hurly47. Improvement in Alzheimer's Disease patients with antioxidant supplementation over 15 monthsS J van Rensburg, F C V Potocnik, J M Van Zyl, B J Van der Walt, D Hon, A Roos, E Rienhardt, R T Erasmus48. The Placebo effect - Is it all in the mind?S J van Rensburg, R A  Emsley, C M Smuts, M Kidd, S Van der Merwe, C C Myburgh, P Oosthuizen, H Bleeker49. Very low serum Iron concentrations in elderly patients with active CarcinomaS J van Rensburg, R Erasmus, D Hon, C Bouwens50. Melatonin affords protection against Rotenone-induced NeurotoxicityR John, S Daya51. Effect of enriched environment on Ca uptake via NMDA Receptors into barrel Cortex slices of spontaneously Hypertensive ratsM Lehohla, V Russell, L Kellaway52. Effects of Methylpenidate in a rat model for Attention-Deficit Hyperactivity DisorderG. L. S. Lelaka, V. A. Russel, L. A. Kellaway53. 6-Hydroxymelatonin converts Fe (III) to Fe (II) and reduces iron-induced Lipid PeroxidationD S Maharaj, S Daya54. Metrofinate Potentiates Quinolinic Acid and Potassium Cyanide induced NeurotoxicityA Ramsunder, S Daya55. The effect of chronic Intra-Amygdala CRF injections on rat behaviour and HPA-Axis functionL Richter, W Daniels, D J Stein56. Effect of Glutamate in the Prefrontal Cortex of a rat model for Attention-Deficit Hyperactivity DisorderV Russell, M Lehohla, L Kellaway57. An investigation into the relationship between Corticosterone and Neuron cell deathP J Van Vuuren, J Hendricks, W M U Daniels=============================================================Posters: Psychiatry Section1. Descriptive study of Tardive Dyskinesia in a South African Xhosa populationS Brink2. Alcohol drinking problems at three urban High Schools in UmtataO Alonso Betancourt3. Childhood and adolescent sexual abuse - Demographic, traumatic and clinical signpostsP D Carey4. Inositol in the treatment of Obsessive Compulsive DisorderP D Carey5. A review of factors associated with Suicidal behaviour in children and adolescents admitted to Tygerberg HospitalT Du Plessis6. Psychological and physical outcomes fo elective abortion; Local Anaesthesia vs Intravenous SedationT Ericksen7. Mental health literacy of Human Resource Practitioners in South AfricaC J Hugo8. The importance of a specialized clinic for the care of patients with first episodes of psychosisN Keyter9. Self-report vs Urinary drug screening in Schizophrenia: A pilot studyL Koen10. The effect of aggression on the use of Psychotropics in Schizophrenia: A naturalistic studyH Lategan11. Factor analysis of obsessive-compulsive spectrum disorders in patients with obssessive-compulsive disorder: Clinical and Genetic correlatesC Lochner12. Experiences in obsessive-compulsive Disorder and Trichotillomania: Role of childhood traumaC Lochner13. Delusional systems in Xhosa Schizophrenia SibpairsJ E Muller14. OCD Heteogeneity reflected by lack of Genealogically determined founder effectD J H Niehaus15. The efficacy and tolerbaility of low-dose vs standard dose Haloperidol in first episode Psychosis. A randomised, double-blind studyP P Oosthuizen16. Treatment with low-dose Haloperidol does not protect against Tardive DyskinesiaP P Oosthuizen17. Do healthcare funders discriminate against members on the grounds of mental illness?O Scholtz18. Treatment strategies in patients with Clozaopine-resistant Schizophrenia at Stikland Hospital: A critical evaluation of one optionA Schulte19. Early coadministration of Clonazepam with Paroxetine for generalized social anxiety disorderS Seedat20. Trauma exposure and post-traumatic stress symptoms in adolescents: A schools' survey in Cape Town (South Africa) and Nairobi (Kenya)S Seedat21. The QTC effects of Thioridazine when used as a second line Anti-psychotic ( at Stikland Hospital)C Seller22. Brain imaging and substance related disordersD J Stein23. Gender differences in trauma exposure & post traumatic stress disorder in a clinic sampleS Suliman24. Assessing the prevalence of anxiety and depressive symptoms among clinica at Tygerbeg Academic Hospital and controlsH Van der Bijl25. Pharmacological challenge with a serotonin ID Agonist in alcohol dependenceB Vythilingum26. The treatment of ADHD in adultsW Verbeeck=============================================================58. Descriptive study of Tardive Dyskinesia in a South African Xhosa populationS Brink, D J H Niehaus, L Koen, J E Muller59. Alcohol drinking problems at three Urban High Schools in UmtataO Alonso Betancourt, M Morales Herrera60. Childhood and adolescent sexual abuse - Demographic, traumatic and clinical signpostsP D Carey, J Walker, S Seedat, D J Stein61. Inositol in the treatment of obsessive compulsive DisorderP D Carey, S Seedat, D J Stein62. A review of factors associated with suicidal behaviour in children and adolescents admitted to Tygerberg HospitalT Du Plessis, S M Hawkridge, F H Theron, S A Du Plessis63. Psychological and physical outcomes of elective abortion: Local anaestheisa vs Intravenous sedationT Ericksen, S Seedat, P Labuschagne, D J Stein64. Mental health literacy of Human resource practitioners in South AfricaC J Hugo, H D Vos, D J Stein65. The importance of a specialized clinic for the care of patients with first episodes of psychosisN Keyter, P P Oosthuizen, R A Emsley, H J Turner66. Self-reort vs urinary drug screening in Schizophrenia: A pilot studyL Koen, D J H Niehaus, J E Muller, C Seller, N Keyter67. The effect of aggression on the use of Psychotropics in Schizophrenia: A naturalistic studyH Lategan, L Koen, D J H Niehaus68. Factor analysis of obsessive-compulsive spectrum disorders in patients with obsessive-compulsive Disorder: Clinical and genetic correlatesC Lochner, D J H Niehaus, S M J Hemmings, C J Kinnear, V A Corfield, J C Moolman-Smook, D J Stein69. Experiences in obsessive-compulsive disorder and Trichotillomania: Role of childhood traumaC Lochner, S Seedat, P D Carey, D J Stein70. Delusional systems in Xhosa Schizophrenia SibpairsJ E Muller, D J H Niehaus, L Koen, C Seller, N Keyter, C Laurent, R A Emsley71. OCD Heteogeneity reflected by lack of Genealogically determined founder effectD J H Niehaus, L Endeman, I Bosman, S Hemmings, C Lochner, L Koen, H Moolman-Smook, V A Corfield, D J Stein72. The efficacy and tolerability of low-dose vs standard dose Haloperidol in first episode Psychosis. A randomised, double-blind studyP P Oosthuizen, R A Emsley, H J Turner, N Keyter73. Treatment with low-dose Haloperidol does not protect against Tardive DyskinesiaP P Oosthuizen, R A Emsley, H J Turner, N Keyter74. Do healthcare funders discriminate against members on the grounds of mental illness?O Scholtz, P P Oosthuizen, C Hugo, B Richards75. Treatment strategies in patients with Clozapine resistant Schizophrenia at Stikland Hospital: A critical evaluation of one optionA Schulte, D J H Niehaus, L Koen, J E Muller, P P Oosthuizen, R A Emsley76. Early coadministration of Clonazepam with Paroxetine for generalised Social Anxiety DisorderS Seedat, M B Stein77. Trauma exposure and post-traumatic stress symptoms in adolescents: A schools' survey in Cape Town (South Africa) and Nairobi (Kenya)S Seedat, C Nyamap, F Njenga, B Vythilingum, D J Stein78. The QTC effects of Thioridazine when used as a second line Antipsychotic (at Stikland Hospital)C Seller, P P Oosthuizen79. Brain imaging and substance related disordersD J Stein80. Gender differences in trauma exposure & post traumatic stress disorder in a clinic sampleS Suliman, S Seedat, F Gxama, J Walker, W Rossouw81. Assessing the prevalence of anxiety and depressive symptoms among clinicians at Tygerberg Academic Hospital and controlsH Van der Bijl, P P Oosthuizen82. Pharmacological challenge with a Serotonin ID agonist in alcohol dependenceB Vythilingum, C Wessels, S Maritz, W P Pienaar, D J Stein83. The treatment of ADHD in adultsW Verbeeck

Abstract: The Neptune Odyssey mission concept is a Flagship-class orbiter and atmospheric probe to the Neptune–Triton system. This bold mission of exploration would orbit an ice-giant planet to study the planet, its rings, small satellites, space environment, and the planet-sized moon Triton. Triton is a captured dwarf planet from the Kuiper Belt, twin of Pluto, and likely ocean world. Odyssey addresses Neptune system-level science, with equal priorities placed on Neptune, its rings, moons, space environment, and Triton. Between Uranus and Neptune, the latter is unique in providing simultaneous access to both an ice giant and a Kuiper Belt dwarf planet. The spacecraft—in a class equivalent to the NASA/ESA/ASI Cassini spacecraft—would launch by 2031 on a Space Launch System or equivalent launch vehicle and utilize a Jupiter gravity assist for a 12 yr cruise to Neptune and a 4 yr prime orbital mission; alternatively a launch after 2031 would have a 16 yr direct-to-Neptune cruise phase. Our solution provides annual launch opportunities and allows for an easy upgrade to the shorter (12 yr) cruise. Odyssey would orbit Neptune retrograde (prograde with respect to Triton), using the moon's gravity to shape the orbital tour and allow coverage of Triton, Neptune, and the space environment. The atmospheric entry probe would descend in ∼37 minutes to the 10 bar pressure level in Neptune's atmosphere just before Odyssey's orbit-insertion engine burn. Odyssey's mission would end by conducting a Cassini-like “Grand Finale,” passing inside the rings and ultimately taking a final great plunge into Neptune's atmosphere.