20 results
Medical cannabis use among patients with Post-Traumatic Stress Disorder (PTSD): A nationwide database study
- N. Yakirevich Amir, N. Treves, E. Davidson, O. Bonne, I. Matok
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S111-S112
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Introduction
In recent years, cannabis use among PTSD patients has become more common than ever. However, data available today regarding the effectiveness and safety of medical cannabis in PTSD treatment is limited, based on cross sectional studies, self-report surveys and a few clinical studies with small sample size.
ObjectivesTo characterize patterns of use and adverse effects over time in patients with PTSD using medical cannabis in real life setting.
MethodsData were acquired from the Israeli national database of all patients licensed to use medical cannabis from January 2014 to December 2021. A license for medical cannabis is given to patients with PTSD of at least moderate intensity after treatment failure of at least two drugs and two psychological interventions. Comparative statistics were used to evaluate patterns of use and adverse effects.
Results12,977 patients were licensed to use medical cannabis in the study period for PTSD (8.2% of all users; 70% men) during the above-mentioned time period. PTSD was the 3rd most common indication after chronic pain and symptoms related to oncological disease and chemotherapy treatment. Over time, the relative increase in use of medical cannabis among PTSD patients was higher than that found in non-PTSD patients. In 2021 36.2% of all PTSD patients using medical cannabis had their license issued that year compared to 28.1% of all non-PTSD patients. PTSD patients were significantly younger compared to non-PTSD patients (40.9 years vs. 52.9 years). PTSD patients consume slightly higher monthly amount at the beginning of treatment compared to non-PTSD patients (32.1gr vs. 30.6gr) with higher Tetrahydrocannabinol (THC) concentration (15.2% vs. 12.9%) and lower Cannabidiol (CBD) concentration (4.7% vs. 6.0%). Over two years of use, amount, and composition of cannabis among the two groups were comparable and showed an increase in total amount and THC concentration, reaching the maximal available THC concentration of 20%. Data regarding adverse effects were available for 6,242 PTSD patients (48.1%) and 39,497 non-PTSD patients (26.6%). PTSD patients reported more physical adverse effects (RR 1.45 [95%CI 1.34-1.56]), anxiety (RR 1.47 [95%CI 1.13-1.92]), and derealization (RR 3.44 [95%CI 2.42-4.89]).
ConclusionsPTSD is one of the leading indications for medical cannabis use in Israel, despite scarcity in good quality data supporting its effectiveness and safety. The increased risk of mental adverse effects among PTSD patients emphasizes the need for cautious use in cannabis in this population. Expanding the knowledge regarding patterns of use and risks in medical cannabis use among PTSD patients is important for understanding the role of cannabis in PTSD treatment and to ensure an effective and safe treatment.
Disclosure of InterestNone Declared
Sex-related differences in medical cannabis use: A nation-wide database study
- N. Yakirevich Amir, N. Treves, I. Reuveni, E. Davidson, O. Bonne, I. Matok
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S82
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Introduction
Cannabis use is associated with mental illness among men and women, especially induction or exacerbation of psychosis, anxiety, and depression. Although safety and efficacy of cannabis in most medical conditions have not been established, use of medical cannabis is growing exponentially. In particular, albeit sex-related differences in the activity of the endocannabinoid system in animals and humans, differential effects of cannabis on men and women have rarely been sought.
ObjectivesTo characterize patterns of use and adverse effects experienced by men and women using medical cannabis.
MethodsData from the Israeli national database of patients licensed to use medical cannabis in Israel from January 2014 to December 2021 was analyzed. The database includes indications for cannabis use, monthly cannabis quantities, Tetrahydrocannabinol (THC) and Cannabidiol (CBD) concentrations, and reports of adverse effects. Comparative statistics were used to evaluate the sex related differences.
Results161,644 persons (62% men) were issued a license to use medical cannabis during the study period. Men are significantly younger than women (50.5±19.1 vs. 56.5±18.4). The leading indications among both men and women are chronic pain (58% of men, 57% of women), symptoms related to oncological disease and chemotherapy treatment (21% of men, 24% of women) and post-traumatic stress disorder (9% of men, 6% of women). Men consume significantly higher monthly quantities at the beginning of treatment compared to women (31.6 gram vs. 29.3 gram) with a higher THC concentration (13.9% vs. 11.6%) and lower CBD concentration (5.3% vs. 6.7%). Over two years of use, there is an increase among both men and women in the amount and THC concentration, and a decrease in the CBD concentration. The differences between men and women remain significant throughout the whole period. Data on adverse effects are available for 28,629 men and 17,204 women (28.6% of men, 28.0% of women). Women report significantly more physical adverse effects (RR 1.48 [95%CI 1.39-1.57]), anxiety (RR 1.45 [95%CI 1.35-1.56]), depression (RR 1.36 [95%CI 0.95-1.96]) and derealization (RR 3.44 [95%CI 2.42-4.89]).
ConclusionsAlthough the prevalence of medical conditions for which medical cannabis is indicated are similar for both genders, approximately 60% more men consume medical cannabis. While consuming lower cannabis amount and THC concentration, women report more physical and psychiatric adverse effects than men. Understanding the differences in usage patterns and adverse effects between men and women will enable more accurate policy determinations and more effective and safer treatment strategies.
Disclosure of InterestNone Declared
Political Economy of Growth and Destruction: A Statistical Interpretation of the Iranian Case
- Manoucher Parvin, Amir N. Zamani
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- Journal:
- Iranian Studies / Volume 12 / Issue 1-2 / Spring Winter 1979
- Published online by Cambridge University Press:
- 01 January 2022, pp. 43-78
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- Spring Winter 1979
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The completion of this article preceded the triumph of the Revolution in Iran. During the previous regime, critical studies on the subject of political economy of Iran, either went unpublished or were sufficiently diluted to cause no alarm and thus no harm. We write from personal experience and from knowledge of the experiences of other colleagues.
This study is not free from the effects of such constrictions since most available official data generated in Iran during the past regime were tampered with somewhat to satisfy political interests and concerns. The data at hand fail to reflect what we think of as the “economics of growth and destruction.” By using available data, reaching for alternative sources when possible, and pointing out the observed inconsistencies, we have uncovered a bleak picture, despite the distortions by authorities who, unwilling to reform the condition of life in Iran, kept reforming the data.
16 - Stakeholder Impartiality: A New Classic Approach for the Objectives of the Corporation
- from Part IV - Stakeholders and Society
- Edited by Arthur B. Laby, Jacob Hale Russell
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- Fiduciary Obligations in Business
- Published online:
- 20 August 2021
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- 09 September 2021, pp 301-317
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Summary
The stockholder/stakeholder dilemma has occupied corporate leaders and corporate lawyers for over a century. In addition to the question of whose interests should managers prioritize in discharging their fiduciary duties, the question of how those interests could or should be balanced has proven equally difficult. To address the latter challenge, this paper advances a doctrinal innovation that is both new and time-honored—to implement a duty of impartiality with regard to directors’ discretion over stakeholder interests. A sub-component of trustees’ duty of loyalty, the duty of impartiality regulates settings in which several beneficiaries have conflicting interests without dictating substantive outcomes, especially not equal treatment. This paper proposes an analogous process-oriented impartiality duty for directors to consider the interests of relevant stakeholders. Stakeholder impartiality is a lean duty whose main advantage lies in its being workable. It can be implemented in legal systems that have different positions on the objectives of the corporation, from Canada’s and India’s open-ended stakeholderist approaches to Delaware’s staunch shareholderism.
Group interpersonal psychotherapy for maternal depression an exploratory randomized control trial
- H. Nusrat, N. Zehra, B. Amir, C. Nasim, K. tayyeba, Z. Shehla, F. Batool, H. Meher, N. Farooq
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- Journal:
- European Psychiatry / Volume 33 / Issue S1 / March 2016
- Published online by Cambridge University Press:
- 23 March 2020, pp. S413-S414
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Introduction
The global burden of depression is high for women in both high income and low-and-middle income countries WHO. Depression is particularly common during pregnancy and in the postnatal period and phenomenology said to be the same as in non-child bearing age. Despite high prevalence of prenatal and postnatal depression in Pakistan, research on the effectiveness of psychological interventions is limited.
AimsThis study aimed to assess the feasibility of group interpersonal psychotherapy (IPT) intervention for maternal depression in Karachi, Pakistan.
MethodsA total of 50 mothers aged 18 years and above with children below 3 years of age, and experiencing mild to moderate depression were recruited. Assessments were done using Edinburgh Postnatal Depression Scale (EPDS) Rosenberg's Self-Esteem Scale and EuroQol-5D at baseline, 3 months, and 6 months. Rosenberg's Self-Esteem Scale and EQ-5D were also used to measure self-esteem and health related quality of life. Participants were randomly assigned into IPT plus treatment as usual (TAU) and TAU groups. Ten sessions of group IPT were delivered to intervention group.
ResultsResults indicated significant difference between intervention and control group on EPDS. The mean score at baseline for the IPT group (mean = 14.76) reduced to (mean = 6.40) (P < 0.000) at 3-month and to (mean = 6.64) (P < 0.001) at 6-month intervals as compared to TAU (mean = 11.44) (P < 0.000) at 3-month and to (mean = 11.08) at 6-month (P < 0.001) after randomisation.
ConclusionIPT is a successful fit for women with maternal depression in low-income areas and IPT can be the appropriate treatment option as it is time limited, specific, and evidence based.
Disclosure of interestThe authors have not supplied their declaration of competing interest.
16 - Be Careful What You Wish For
- from II - Regional- and Country-Specific Insights
- Edited by Luca Enriques, University of Oxford, Tobias H. Tröger
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- Book:
- The Law and Finance of Related Party Transactions
- Published online:
- 07 June 2019
- Print publication:
- 27 June 2019, pp 452-476
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Progress of Radar Observations of Meteors in Kazan (Russia) over the Last Sixty Years
- Sergei A. Kalabanov, Arkadiy V. Karpov, Amir I. Sulimov, Oleg N. Sherstyukov, Rashid A. Ishmuratov
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- Journal:
- Proceedings of the International Astronomical Union / Volume 13 / Issue S349 / December 2018
- Published online by Cambridge University Press:
- 01 April 2019, pp. 260-267
- Print publication:
- December 2018
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This paper presents a brief survey on the history of radar observations of meteors in Kazan from 1950s to present days. Such achievements of Kazan researchers as development and further improvement of original measuring equipment and antenna systems, of observational data processing methods, their contribution to the theory of physics of meteor phenomena and theoretical interpretation of experimental data are highlighted. A particular progress in meteor astronomy has been achieved with a new discrete quasi-tomoghraphic method for faint meteor showers identification that uses goniometer data of meteor radio reflections detected on radar as input data. The current state and new horizons of meteor studies in Kazan are stated.
Biological and Behavioral Patterns of Post-Stroke Depression in Rats
- Gal Ifergane, Matthew Boyko, Dmitri Frank, Honore N. Shiyntum, Julia Grinshpun, Ruslan Kuts, Amir B. Geva, Zeev Kaplan, Vladimir Zeldetz, Hagit Cohen
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- Journal:
- Canadian Journal of Neurological Sciences / Volume 45 / Issue 4 / July 2018
- Published online by Cambridge University Press:
- 08 June 2018, pp. 451-461
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Background: Post-stroke depression (PSD) is the most frequent psychiatric complication following ischemic stroke. It affects up to 60% of all patients and is associated with increased morbidity and mortality following ischemic stroke. The pathophysiology of PSD remains elusive and appears to be multifactorial, rather than “purely” biological or psychosocial in origin. Thus, valid animal models of PSD would contribute to the study of the etiology (and treatment) of this disorder. Methods: The present study depicts a rat model for PSD, using middle cerebral artery occlusion (MCAO). The two-way shuttle avoidance task, Porsolt forced-swim test, and sucrose preference test were employed to assess any depression-like behavior. Localized brain expressions of brain-derived neurotrophic factor (BDNF) protein levels were evaluated to examine the possible involvement of the brain neuronal plasticity in the observed behavioral syndrome. The raw data were subjected to unsupervised fuzzy clustering (UFC) algorithms to assess the sensitivity of bio-behavioral measures indicative of depressive symptoms post MCAO. Results: About 56% of the rats developed significant depressive-like behavioral disruptions as a result of MCAO compared with 4% in the sham-operated control rats. A pattern of a depressive-like behavioral response was common to all affected MCAO animals, characterized by significantly more escape failures and reduced number of total avoidance shuttles, a significant elevation in immobility duration, and reduced sucrose preference. Significant downregulations of BDNF protein levels in the hippocampal sub-regions, frontal cortex, and hypothalamus were observed in all affected MCAO animals. Conclusion: The UFC analysis supports the behavioral analysis and thus, lends validity to our results.
Impacts of anthropogenic pressures on the contemporary biogeography of threatened crocodilians in Indonesia
- Kyle J. Shaney, Amir Hamidy, Matthew Walsh, Evy Arida, Aisyah Arimbi, Eric N. Smith
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The Greater Sunda region of South-east Asia supports a rich diversity of economically and ecologically important species. However, human pressures are reshaping contemporary biogeography across the region. Megafaunal distributional patterns have been particularly affected because of deforestation, poaching and human–wildlife conflict. Crocodilians are at the centre of these conflicts in Indonesia and yet remain poorly studied across much of the archipelago. We conducted population surveys of salt-water crocodiles Crocodylus porosus and false gharials Tomistoma schlegelii in Sumatra, and examined whether crocodile abundance and distribution are correlated with variations in human disturbance, fishing pressure, and habitat type. We then used these data to model remaining suitable habitat for T. schlegelii across South-east Asia. We found that abundance of T. schlegelii and C. porosus was correlated with distance from human settlements, and fish-trapping pressure. We recorded the presence of T. schlegelii in a river system in which it was previously unknown, thus expanding the known range of the species. We also found that the predicted remaining suitable habitat for T. schlegelii in Indonesia is largely limited to areas of low human activity. From these empirical and modelling approaches we propose several key conservation priorities: (1) eliminate the use of fish traps in remaining patches of T. schlegelii habitat, (2) prioritize crocodile population surveys in remaining suitable habitat, particularly in remote areas, (3) consider T. schlegelii to be potentially Endangered locally in Sumatra, and (4) expand existing reserves around the Lower Kampar River and Berbak National Park/Sembilang National Park areas of Sumatra.
Spiral diffusion of self-assembled dimers of Janus spheres
- John G. Gibbs, Amir Nourhani, Joel N. Johnson, Paul E. Lammert
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- Journal:
- MRS Advances / Volume 2 / Issue 57 / 2017
- Published online by Cambridge University Press:
- 29 May 2017, pp. 3471-3478
- Print publication:
- 2017
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Janus spheres, micron-sized silica spheres half-coated with platinum, move rectilinearly away from the platinum side in aqueous hydrogen peroxide. Upon self-assembling, these colloidal particles can form dimers with different conformations that exhibit both rectilinear and rotational modes of motion depending upon the relative orientation of each Janus sphere. At the micron length-scale, stochastic rotational Brownian dynamics is of the order of deterministic dynamics, and their coupling results in effective diffusion, in addition to passive translational diffusion. For dimers with rotary motion, the dynamic coupling leads to spiral trajectories for an ensemble average of the displacement vector.
Conservation challenges regarding species status assessments in biogeographically complex regions: examples from overexploited reptiles of Indonesia
- Kyle J. Shaney, Elijah Wostl, Amir Hamidy, Nia Kurniawan, Michael B. Harvey, Eric N. Smith
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IUCN Red List assessments are important for conservation and management initiatives. However, status assessments are often challenging because of poor sampling between biogeographical regions. Researchers sometimes assess poorly known species, which can have unforeseen ramifications, including the trade of rare and cryptic species under common species names. Here, we address this issue in relation to economically important reptile species in Indonesia. We reviewed examples of single species categorized as Least Concern for which the assessments probably encompassed multiple closely related species. We also examined Red List assessments that utilized species distribution modelling techniques, and identified biogeography as a major barrier to using such methods. To test how biogeography may affect status assessments we used our own model lizard system from Indonesia, taking an integrative phylogeographical approach to quantify status assessments under contrasting scenarios. We show that failure to account for biogeographical breaks leads to significant variation in Red List status. Our model system fluctuates from Least Concern to Endangered, depending upon whether biogeographical boundaries are considered in taxonomic evaluations. We identify Sauria (lizards) and Serpentes (snakes) as major lineages requiring taxonomic and conservation attention in Indonesia. We also make the following recommendations: (1) Indonesia's trade quotas should further subdivide management zones to account for gaps in taxonomic evaluations; (2) genetic sampling should be considered a high priority during wildlife exportation processes from poorly studied geographical areas; and (3) continuation of thorough biological inventory is critical for conservation initiatives across heterogeneous mountain and island landscapes.
13 - Liability for Transnational Securities Fraud, Quo Vadis?
- from III - Reconceptualising Cross-Border Finance
- Edited by Ross P. Buckley, University of New South Wales, Sydney, Emilios Avgouleas, University of Edinburgh, Douglas W. Arner, The University of Hong Kong
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- Book:
- Reconceptualising Global Finance and its Regulation
- Published online:
- 05 February 2016
- Print publication:
- 11 March 2016, pp 250-276
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Reliability of Carotid Doppler performed in a dedicated Stroke Prevention Clinic
- N. Dean, H. Lari, M. Saqqur, N. Amir, K. Khan, M. Mouradian, Abdul Salam, H. Romanchuk, A. Shuaib
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- Journal:
- Canadian Journal of Neurological Sciences / Volume 32 / Issue 3 / August 2005
- Published online by Cambridge University Press:
- 02 December 2014, pp. 327-331
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Introduction:
Doppler ultrasound (DUS) is used as a screening tool to assess internal carotid artery (ICA) disease. Recent reports suggest that the DUS may be inaccurate in over 28% of patients. We sought to evaluate the accuracy of DUS, when performed in a dedicated stroke prevention clinic (SPC).
Methods:We retrospectively reviewed the charts of patients who had a DUS performed in our SPC, followed by conventional cerebral angiography. Three groups of patients were defined. Group 1 had DUS measured ICA stenosis of >50%; Group II had a DUS measured ICA stenosis of <50%; Group III had complete ICA occlusion on DUS.
Results:Sixty-seven patients (69 arteries) were included in the study. There were 45 patients in Group I and based on the findings of cerebral angiography, carotid endarterectomy was considered inappropriate in only one patient. - a misclassification rate of 2.2% (95%CI: 0 – 6.5%). Group II consisted of 19 patients and on cerebral angiography, none of these patients had a stenosis of >50% - a misclassification rate of 0%. Group III consisted of five patients in whom DUS showed complete ICA occlusion. The angiogram confirmed the occlusion in all five patients – a misclassification rate of 0%. Overall, misclassification rate was 1.45% (95% CI: 0 - 4.3%).
Conclusions:Doppler ultrasound when performed in a stroke prevention clinic (SPC), has a high accuracy in measuring ICA stenosis of >50%. Doppler ultrasound is reliable in detecting complete ICA occlusion and finally DUS is a reliable screening tool to rule out clinically significant ICA stenosis.
Contributors
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- By Oscar A. Cabrera, Y. Y. Brandon Chen, André den Exter, Colleen M. Flood, Mária Éva Földes, Lisa Forman, Fanny Gómez, Aeyal Gross, Anand Grover, Christina S. Ho, Allison K. Hoffman, Everaldo Lamprea, Anna-Sara Lind, Joanna Manning, Maitreyi Misra, Christopher Newdick, Remigius N. Nwabueze, Mariana Mota Prado, Lubhyathi Rangarajan, Jerome Amir Singh
- Edited by Colleen M. Flood, Aeyal Gross
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- Book:
- The Right to Health at the Public/Private Divide
- Published online:
- 05 May 2014
- Print publication:
- 28 April 2014, pp ix-xvi
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- By Amir AghaKouchak, Abdulaziz M. Al-Bassam, Irasema Alcántara-Ayala, José L. Alonso, Keith Alverson, Daniel N. Baker, Talfan D. Barnie, Tom Beer, Dan Braithwaite, Sálvano Briceño, Amy Donovan, Stephen Dovers, Kerry Emanuel, David J. Ferguson, Jaime Urrutia Fucugauchi, Andrei Gabrielov, Mohsen Ghafory-Ashtiany, Harsh K. Gupta, Viacheslav K. Gusiakov, John Handmer, Ailsa Holloway, Kuolin Hsu, Mohammad T. Hussein, Alik Ismail-Zadeh, Jamie M. Jackson, Vladimir Keilis-Borok, Akio Kitoh, Sucharit Koontanakulvong, T. Srinivasa Kumar, Nils Lenhardt, Ning Lin, Petra Löw, Tengfei Ma, Thomas Mahl, Brassnavy Manzunzu, Gordon McBean, Vunganai Midzi, Shailesh Nayak, Phu Nguyen, Sayaka Olsen, Clive Oppenheimer, Gerassimos A. Papadopoulos, Antonia Papageorgiou, Omar J. Pérez, Mahefasoa T. Randrianalijaona, Carlos Rodríguez, Kenji Satake, Scott Sellars, Anselm Smolka, Soroosh Sorooshian, Lauren K. Thompson, Erik Vanmarcke, Angelika Wirtz, Zhongliang Wu, Sibel Yildirim, Gezahegn Yirgu, Faisal K. Zaidi, Ilya Zaliapin
- Edited by Alik Ismail-Zadeh, Karlsruhe Institute of Technology, Germany, Jaime Urrutia Fucugauchi, Universidad Nacional Autónoma de México, Andrzej Kijko, University of Pretoria, Kuniyoshi Takeuchi, Ilya Zaliapin, University of Nevada, Reno
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- Book:
- Extreme Natural Hazards, Disaster Risks and Societal Implications
- Published online:
- 05 May 2014
- Print publication:
- 17 April 2014, pp x-xii
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Contributors
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- By Rose Teteki Abbey, K. C. Abraham, David Tuesday Adamo, LeRoy H. Aden, Efrain Agosto, Victor Aguilan, Gillian T. W. Ahlgren, Charanjit Kaur AjitSingh, Dorothy B E A Akoto, Giuseppe Alberigo, Daniel E. Albrecht, Ruth Albrecht, Daniel O. Aleshire, Urs Altermatt, Anand Amaladass, Michael Amaladoss, James N. Amanze, Lesley G. Anderson, Thomas C. Anderson, Victor Anderson, Hope S. Antone, María Pilar Aquino, Paula Arai, Victorio Araya Guillén, S. Wesley Ariarajah, Ellen T. Armour, Brett Gregory Armstrong, Atsuhiro Asano, Naim Stifan Ateek, Mahmoud Ayoub, John Alembillah Azumah, Mercedes L. García Bachmann, Irena Backus, J. Wayne Baker, Mieke Bal, Lewis V. Baldwin, William Barbieri, António Barbosa da Silva, David Basinger, Bolaji Olukemi Bateye, Oswald Bayer, Daniel H. Bays, Rosalie Beck, Nancy Elizabeth Bedford, Guy-Thomas Bedouelle, Chorbishop Seely Beggiani, Wolfgang Behringer, Christopher M. Bellitto, Byard Bennett, Harold V. Bennett, Teresa Berger, Miguel A. Bernad, Henley Bernard, Alan E. Bernstein, Jon L. Berquist, Johannes Beutler, Ana María Bidegain, Matthew P. Binkewicz, Jennifer Bird, Joseph Blenkinsopp, Dmytro Bondarenko, Paulo Bonfatti, Riet en Pim Bons-Storm, Jessica A. Boon, Marcus J. Borg, Mark Bosco, Peter C. Bouteneff, François Bovon, William D. Bowman, Paul S. Boyer, David Brakke, Richard E. Brantley, Marcus Braybrooke, Ian Breward, Ênio José da Costa Brito, Jewel Spears Brooker, Johannes Brosseder, Nicholas Canfield Read Brown, Robert F. Brown, Pamela K. Brubaker, Walter Brueggemann, Bishop Colin O. Buchanan, Stanley M. Burgess, Amy Nelson Burnett, J. Patout Burns, David B. Burrell, David Buttrick, James P. Byrd, Lavinia Byrne, Gerado Caetano, Marcos Caldas, Alkiviadis Calivas, William J. Callahan, Salvatore Calomino, Euan K. Cameron, William S. Campbell, Marcelo Ayres Camurça, Daniel F. Caner, Paul E. Capetz, Carlos F. Cardoza-Orlandi, Patrick W. Carey, Barbara Carvill, Hal Cauthron, Subhadra Mitra Channa, Mark D. Chapman, James H. Charlesworth, Kenneth R. Chase, Chen Zemin, Luciano Chianeque, Philip Chia Phin Yin, Francisca H. Chimhanda, Daniel Chiquete, John T. Chirban, Soobin Choi, Robert Choquette, Mita Choudhury, Gerald Christianson, John Chryssavgis, Sejong Chun, Esther Chung-Kim, Charles M. A. Clark, Elizabeth A. Clark, Sathianathan Clarke, Fred Cloud, John B. Cobb, W. Owen Cole, John A Coleman, John J. Collins, Sylvia Collins-Mayo, Paul K. Conkin, Beth A. Conklin, Sean Connolly, Demetrios J. Constantelos, Michael A. Conway, Paula M. Cooey, Austin Cooper, Michael L. Cooper-White, Pamela Cooper-White, L. William Countryman, Sérgio Coutinho, Pamela Couture, Shannon Craigo-Snell, James L. Crenshaw, David Crowner, Humberto Horacio Cucchetti, Lawrence S. Cunningham, Elizabeth Mason Currier, Emmanuel Cutrone, Mary L. Daniel, David D. Daniels, Robert Darden, Rolf Darge, Isaiah Dau, Jeffry C. Davis, Jane Dawson, Valentin Dedji, John W. de Gruchy, Paul DeHart, Wendy J. Deichmann Edwards, Miguel A. De La Torre, George E. Demacopoulos, Thomas de Mayo, Leah DeVun, Beatriz de Vasconcellos Dias, Dennis C. Dickerson, John M. Dillon, Luis Miguel Donatello, Igor Dorfmann-Lazarev, Susanna Drake, Jonathan A. Draper, N. Dreher Martin, Otto Dreydoppel, Angelyn Dries, A. J. Droge, Francis X. D'Sa, Marilyn Dunn, Nicole Wilkinson Duran, Rifaat Ebied, Mark J. Edwards, William H. Edwards, Leonard H. Ehrlich, Nancy L. Eiesland, Martin Elbel, J. Harold Ellens, Stephen Ellingson, Marvin M. Ellison, Robert Ellsberg, Jean Bethke Elshtain, Eldon Jay Epp, Peter C. Erb, Tassilo Erhardt, Maria Erling, Noel Leo Erskine, Gillian R. Evans, Virginia Fabella, Michael A. Fahey, Edward Farley, Margaret A. Farley, Wendy Farley, Robert Fastiggi, Seena Fazel, Duncan S. Ferguson, Helwar Figueroa, Paul Corby Finney, Kyriaki Karidoyanes FitzGerald, Thomas E. FitzGerald, John R. Fitzmier, Marie Therese Flanagan, Sabina Flanagan, Claude Flipo, Ronald B. Flowers, Carole Fontaine, David Ford, Mary Ford, Stephanie A. Ford, Jim Forest, William Franke, Robert M. Franklin, Ruth Franzén, Edward H. Friedman, Samuel Frouisou, Lorelei F. Fuchs, Jojo M. Fung, Inger Furseth, Richard R. Gaillardetz, Brandon Gallaher, China Galland, Mark Galli, Ismael García, Tharscisse Gatwa, Jean-Marie Gaudeul, Luis María Gavilanes del Castillo, Pavel L. Gavrilyuk, Volney P. Gay, Metropolitan Athanasios Geevargis, Kondothra M. George, Mary Gerhart, Simon Gikandi, Maurice Gilbert, Michael J. Gillgannon, Verónica Giménez Beliveau, Terryl Givens, Beth Glazier-McDonald, Philip Gleason, Menghun Goh, Brian Golding, Bishop Hilario M. Gomez, Michelle A. Gonzalez, Donald K. Gorrell, Roy Gottfried, Tamara Grdzelidze, Joel B. Green, Niels Henrik Gregersen, Cristina Grenholm, Herbert Griffiths, Eric W. Gritsch, Erich S. Gruen, Christoffer H. Grundmann, Paul H. Gundani, Jon P. Gunnemann, Petre Guran, Vidar L. Haanes, Jeremiah M. Hackett, Getatchew Haile, Douglas John Hall, Nicholas Hammond, Daphne Hampson, Jehu J. Hanciles, Barry Hankins, Jennifer Haraguchi, Stanley S. Harakas, Anthony John Harding, Conrad L. Harkins, J. William Harmless, Marjory Harper, Amir Harrak, Joel F. Harrington, Mark W. Harris, Susan Ashbrook Harvey, Van A. Harvey, R. Chris Hassel, Jione Havea, Daniel Hawk, Diana L. Hayes, Leslie Hayes, Priscilla Hayner, S. Mark Heim, Simo Heininen, Richard P. Heitzenrater, Eila Helander, David Hempton, Scott H. Hendrix, Jan-Olav Henriksen, Gina Hens-Piazza, Carter Heyward, Nicholas J. Higham, David Hilliard, Norman A. Hjelm, Peter C. Hodgson, Arthur Holder, M. Jan Holton, Dwight N. Hopkins, Ronnie Po-chia Hsia, Po-Ho Huang, James Hudnut-Beumler, Jennifer S. Hughes, Leonard M. Hummel, Mary E. Hunt, Laennec Hurbon, Mark Hutchinson, Susan E. Hylen, Mary Beth Ingham, H. Larry Ingle, Dale T. Irvin, Jon Isaak, Paul John Isaak, Ada María Isasi-Díaz, Hans Raun Iversen, Margaret C. Jacob, Arthur James, Maria Jansdotter-Samuelsson, David Jasper, Werner G. Jeanrond, Renée Jeffery, David Lyle Jeffrey, Theodore W. Jennings, David H. Jensen, Robin Margaret Jensen, David Jobling, Dale A. Johnson, Elizabeth A. Johnson, Maxwell E. Johnson, Sarah Johnson, Mark D. Johnston, F. Stanley Jones, James William Jones, John R. Jones, Alissa Jones Nelson, Inge Jonsson, Jan Joosten, Elizabeth Judd, Mulambya Peggy Kabonde, Robert Kaggwa, Sylvester Kahakwa, Isaac Kalimi, Ogbu U. Kalu, Eunice Kamaara, Wayne C. Kannaday, Musimbi Kanyoro, Veli-Matti Kärkkäinen, Frank Kaufmann, Léon Nguapitshi Kayongo, Richard Kearney, Alice A. Keefe, Ralph Keen, Catherine Keller, Anthony J. Kelly, Karen Kennelly, Kathi Lynn Kern, Fergus Kerr, Edward Kessler, George Kilcourse, Heup Young Kim, Kim Sung-Hae, Kim Yong-Bock, Kim Yung Suk, Richard King, Thomas M. King, Robert M. Kingdon, Ross Kinsler, Hans G. Kippenberg, Cheryl A. Kirk-Duggan, Clifton Kirkpatrick, Leonid Kishkovsky, Nadieszda Kizenko, Jeffrey Klaiber, Hans-Josef Klauck, Sidney Knight, Samuel Kobia, Robert Kolb, Karla Ann Koll, Heikki Kotila, Donald Kraybill, Philip D. W. Krey, Yves Krumenacker, Jeffrey Kah-Jin Kuan, Simanga R. Kumalo, Peter Kuzmic, Simon Shui-Man Kwan, Kwok Pui-lan, André LaCocque, Stephen E. Lahey, John Tsz Pang Lai, Emiel Lamberts, Armando Lampe, Craig Lampe, Beverly J. Lanzetta, Eve LaPlante, Lizette Larson-Miller, Ariel Bybee Laughton, Leonard Lawlor, Bentley Layton, Robin A. Leaver, Karen Lebacqz, Archie Chi Chung Lee, Marilyn J. Legge, Hervé LeGrand, D. L. LeMahieu, Raymond Lemieux, Bill J. Leonard, Ellen M. Leonard, Outi Leppä, Jean Lesaulnier, Nantawan Boonprasat Lewis, Henrietta Leyser, Alexei Lidov, Bernard Lightman, Paul Chang-Ha Lim, Carter Lindberg, Mark R. Lindsay, James R. Linville, James C. Livingston, Ann Loades, David Loades, Jean-Claude Loba-Mkole, Lo Lung Kwong, Wati Longchar, Eleazar López, David W. Lotz, Andrew Louth, Robin W. Lovin, William Luis, Frank D. Macchia, Diarmaid N. J. MacCulloch, Kirk R. MacGregor, Marjory A. MacLean, Donald MacLeod, Tomas S. Maddela, Inge Mager, Laurenti Magesa, David G. Maillu, Fortunato Mallimaci, Philip Mamalakis, Kä Mana, Ukachukwu Chris Manus, Herbert Robinson Marbury, Reuel Norman Marigza, Jacqueline Mariña, Antti Marjanen, Luiz C. L. Marques, Madipoane Masenya (ngwan'a Mphahlele), Caleb J. D. Maskell, Steve Mason, Thomas Massaro, Fernando Matamoros Ponce, András Máté-Tóth, Odair Pedroso Mateus, Dinis Matsolo, Fumitaka Matsuoka, John D'Arcy May, Yelena Mazour-Matusevich, Theodore Mbazumutima, John S. McClure, Christian McConnell, Lee Martin McDonald, Gary B. McGee, Thomas McGowan, Alister E. McGrath, Richard J. McGregor, John A. McGuckin, Maud Burnett McInerney, Elsie Anne McKee, Mary B. McKinley, James F. McMillan, Ernan McMullin, Kathleen E. McVey, M. 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Phan, Isabel Apawo Phiri, William S. F. Pickering, Derrick G. Pitard, William Elvis Plata, Zlatko Plese, John Plummer, James Newton Poling, Ronald Popivchak, Andrew Porter, Ute Possekel, James M. Powell, Enos Das Pradhan, Devadasan Premnath, Jaime Adrían Prieto Valladares, Anne Primavesi, Randall Prior, María Alicia Puente Lutteroth, Eduardo Guzmão Quadros, Albert Rabil, Laurent William Ramambason, Apolonio M. Ranche, Vololona Randriamanantena Andriamitandrina, Lawrence R. Rast, Paul L. Redditt, Adele Reinhartz, Rolf Rendtorff, Pål Repstad, James N. Rhodes, John K. Riches, Joerg Rieger, Sharon H. Ringe, Sandra Rios, Tyler Roberts, David M. Robinson, James M. Robinson, Joanne Maguire Robinson, Richard A. H. Robinson, Roy R. Robson, Jack B. Rogers, Maria Roginska, Sidney Rooy, Rev. Garnett Roper, Maria José Fontelas Rosado-Nunes, Andrew C. Ross, Stefan Rossbach, François Rossier, John D. Roth, John K. Roth, Phillip Rothwell, Richard E. 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Yee, Viktor Yelensky, Yeo Khiok-Khng, Gustav K. K. Yeung, Angela Yiu, Amos Yong, Yong Ting Jin, You Bin, Youhanna Nessim Youssef, Eliana Yunes, Robert Michael Zaller, Valarie H. Ziegler, Barbara Brown Zikmund, Joyce Ann Zimmerman, Aurora Zlotnik, Zhuo Xinping
- Edited by Daniel Patte, Vanderbilt University, Tennessee
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- Book:
- The Cambridge Dictionary of Christianity
- Published online:
- 05 August 2012
- Print publication:
- 20 September 2010, pp xi-xliv
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Weed control of irrigated peanuts in an arid zone
- J. Amir, N. Lifshitz
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- The Journal of Agricultural Science / Volume 86 / Issue 3 / June 1976
- Published online by Cambridge University Press:
- 27 March 2009, pp. 623-626
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Weed control in irrigated peanuts was evaluated under arid conditions over an 8-year period. Weed competition during the first 8 weeks of the growing season, affected the yield in three out of eight experiments. Mechanical cultivation and herbicides alone or in combination did not control the weed population completely. The best weed control was accomplished by the combination of two herbicides, a system which allowed a complementary effect and long-term control of annual weeds.
List of Contributors
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- By Harold P. Adams, Colum F. Amory, Anne Angelillo-Scherrer, Irena Anselm, Marcel Arnold, Robert W. Baloh, Ralf W. Baumgartner, José Biller, Valérie Biousse, Matthias Bischof, Julien Bogousslavsky, Natan M. Bornstein, Marie Germaine Bousser, Robin L. Brey, John C. M. Brust, Alan Bryer, Olivier Calvetti, Louis R. Caplan, José Castillo, Hugues Chabriat, Chin-Sang Chung, Charlotte Cordonnier, Steven C. Cramer, Luís Cunha, Rima M. Dafer, John F. Dashe, Cyrus K. Dastur, Antonio Dávalos, Larry E. Davis, Patricia Davis, Stephen M. Davis, Jan L. De Bleecker, Michael A. De Georgia, Amir R. Dehdashti, Oscar H. Del Brutto, Jacques L. De Reuck, Hans-Christoph Diener, Kathleen B. Digre, Vivian U. Fritz, Nancy Futrell, Bhuwan P. Garg, Philip B. Gorelick, Glenn D. Graham, Alexander Y. Gur, John J. Halperin, Michael Hennerici, Isabel Lestro Henriques, Roberto C. Heros, Daniel B. Hier, Lorenz Hirt, Joanna C. Jen, Taro Kaibara, Sumit Kapoor, Sarosh M. Katrak, Siddharth Kharkar, Walter J. Koroshetz, Monisha Kumar, Sandeep Kumar, Emre Kumral, Tobias Kurth, Rogelio Leira, Steven R. Levine, Didier Leys, Doris Lin, Jonathan Lipton, Alfredo M. Lopez-Yunez, Betsy B. Love, Ayrton Roberto Massaro, Heinrich P. Mattle, Manu Mehdiratta, John H. Menkes, Philippe Metellus, Reto Meuli, Patrik Michel, Panayiotis Mitsias, Jorge Moncayo-Gaete, Julien Morier, Krassen Nedeltchev, Bernhard Neundörfer, Olukemi A. Olugemo, Nikolaos I. H. Papamitsakis, Stephen D. Reck, Luca Regli, Marc D. Reichhart, Daniele Rigamonti, Michael J. Rivkin, E. Steve Roach, Jose F. Roldan, David Z. Rose, Daniel M. Rosenbaum, N. Paul Rosman, Elayna O. Rubens, Sean I. Savitz, Marc Schapira, Robert J. Schwartzman, Magdy Selim, Yukito Shinohara, Aneesh B. Singhal, Michael A. Sloan, Barney J. Stern, Mathias Sturzenegger, Oriana Thompson, A. Wesley Thevathasan, Jonathan D. Trobe, Michael Varner, Dana Védy, Jorge Vidaurre, Engin Y. Yilmaz, Khaled Zamel, Mathieu Zuber
- Edited by Louis R. Caplan, Julien Bogousslavsky
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- Book:
- Uncommon Causes of Stroke
- Published online:
- 06 January 2010
- Print publication:
- 09 October 2008, pp ix-xiv
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Towards 1010 Contrast for NASA's Terrestrial Planet Finder Mission: Demonstration of High Contrast in a Shaped-Pupil Coronagraph at Princeton
- Ruslan Belikov, James Beall, Michael Carr, Amir Give'on, Jason Kay, Taofik Kolade, Michael Littman, Frank Mycroft, Laurent Pueyo, Robert J. Vanderbei, N. Jeremy Kasdin
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- Journal:
- Proceedings of the International Astronomical Union / Volume 1 / Issue C200 / October 2005
- Published online by Cambridge University Press:
- 02 May 2006, pp. 415-420
- Print publication:
- October 2005
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Our group at Princeton University is developing the Shaped-Pupil Coronagraph (SPC) as a solution to the high contrast imaging requirements for NASA's Terrestrial Planet Finder mission. At the heart of the SPC is a specially designed shaped mask at the pupil plane, and a star occulter at the image plane. We report a measurement of $10^{5}$ contrast at 4 $\lambda/D$ and $10^{6}$ at 7 $\lambda/D$, with no adaptive optics corrections. This contrast is maintained at laser wavelengths of 532, 594, and 632nm, and for broadband light from at least 550nm to 750nm. The contrast is almost certainly limited by wavefront aberrations in the mirrors. Indeed, the level and general structure of the speckles in the high contrast region is consistent with statistical simulations of our optics.
Closed-loop Wavefront Correction for High Contrast Imaging: The “peak-a-boo” Algorithm
- Amir Give'on, N. Jeremy Kasdin, Robert J. Vanderbei
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- Journal:
- Proceedings of the International Astronomical Union / Volume 1 / Issue C200 / October 2005
- Published online by Cambridge University Press:
- 02 May 2006, pp. 541-546
- Print publication:
- October 2005
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High contrast imaging from space must overcome photon noise of the diffracted star light and scattered light from optical components defects. The very high contrast required (up to $10^{-10}$ for terrestrial planets) puts severe requirements on the wavefront control system, as the achievable contrast is limited by the quality of the wavefront. In this paper we present a closed loop correction method for the shaped pupil coronagraph to minimize the energy in a pre-defined region in the image where terrestrial planets would be found. The reconstruction part uses three intensity measurements in the image plane with a pinhole added to the shaped pupil for diversity. This method has been shown in simulations to be effective in the presence of photon noise, deformable mirror modeling errors and overcoming defective actuators in the deformable mirror.