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Relevant bibliographies by topics / Critical period of weed control

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Academic literature on the topic 'Critical period of weed control'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Critical period of weed control"

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Singh, M., M. C. Saxena, B. E. Abu-Irmaileh, S. A. Al-Thahabi, and N. I. Haddad. "Estimation of Critical Period of Weed Control." Weed Science 44, no. 2 (1996): 273–83. http://dx.doi.org/10.1017/s0043174500093899.

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An estimation of the critical period of weed control is helpful in formulating appropriate weed-control strategies. A regression approach is presented to estimate the thresholds of critical period of weed control and time of equal interference (or time of onset of competition). In this approach, yields were either a linear or logistic function of the duration of weed-free and weed-infested periods. Confidence intervals of the thresholds of critical period and time of equal interference were determined for the linear model. An approximation to the standard error of critical period and associate

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Fedoruk, L. K., E. N. Johnson, and S. J. Shirtliffe. "The Critical Period of Weed Control for Lentil in Western Canada." Weed Science 59, no. 4 (2011): 517–26. http://dx.doi.org/10.1614/ws-d-11-00051.1.

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Weed control in lentil is difficult because lentil is a poor competitor with weeds and few POST broadleaf herbicides are available. Imadazolinone-tolerant lentils have more herbicide options, but the optimum timing for herbicide application is not known. The critical period of weed control (CPWC) is the period in a crop's life cycle when weeds must be controlled in order to prevent yield loss. The objective of this research was to determine the CPWC for lentil. We made lentil remain weedy or weed-free from 0 to 11 aboveground nodes to investigate the durations of weed interference and weed-fre

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Dillehay, Bryan L., William S. Curran, and David A. Mortensen. "Critical Period for Weed Control in Alfalfa." Weed Science 59, no. 1 (2011): 68–75. http://dx.doi.org/10.1614/ws-d-10-00073.1.

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The critical period for weed control for many crops has been well investigated and the results have been used to develop better weed management recommendations. However, research is limited on the critical period for weed control for alfalfa, a perennial crop with multiple harvests. With the advent of new, more effective POST herbicides for alfalfa, an understanding of the critical period may further enhance forage yield. The objective of this study was to determine the critical period for weed control in spring-seeded alfalfa. Alfalfa was seeded conventionally at two locations in Pennsylvania

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Miller, Alan B., and Herbert J. Hopen. "Critical Weed-Control Period in Seeded Cabbage (Brassica oleraceavarcapitata)." Weed Technology 5, no. 4 (1991): 852–57. http://dx.doi.org/10.1017/s0890037x00033972.

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The critical weed-control period in field seeded cabbage using natural weed stands was 2 wk in 1988 and 4 wk in 1989. Regression analysis showed that the length of weed-free period, weed density, and ambient light reduction by competing weeds were factors affecting cabbage yield. Weeds that emerged after the initial weed-free period shaded the soil and subsequently lowered soil surface temperatures in 1989. Velvetleaf densities of 1.2 and 3.6 plants per m2that competed all season with cabbage reduced cabbage yields 52% and 71% of the weed-free treatment in 1988 and 76% and 92% in 1989, respect

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Knezevic, Stevan Z., and Avishek Datta. "The Critical Period for Weed Control: Revisiting Data Analysis." Weed Science 63, SP1 (2015): 188–202. http://dx.doi.org/10.1614/ws-d-14-00035.1.

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There is an ever-larger need for designing an integrated weed management (IWM) program largely because of the increase in glyphosate-resistant weeds, not only in the United States but also worldwide. An IWM program involves a combination of various methods (cultural, mechanical, biological, genetic, and chemical) for effective and economical weed control (Swanton and Weise 1991). One of the first steps in designing an IWM program is to identify thecritical period for weed control(CPWC), defined as a period in the crop growth cycle during which weeds must be controlled to prevent crop yield los

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Anwar, M. P., A. S. Juraimi, B. Samedani, A. Puteh, and A. Man. "Critical Period of Weed Control in Aerobic Rice." Scientific World Journal 2012 (2012): 1–10. http://dx.doi.org/10.1100/2012/603043.

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Critical period of weed control is the foundation of integrated weed management and, hence, can be considered the first step to design weed control strategy. To determine critical period of weed control of aerobic rice, field trials were conducted during 2010/2011 at Universiti Putra Malaysia. A quantitative series of treatments comprising two components, (a) increasing duration of weed interference and (b) increasing length of weed-free period, were imposed. Critical period was determined through Logistic and Gompertz equations. Critical period varied between seasons; in main season, it start

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Gantoli, Geoffroy, Victor Rueda Ayala, and Roland Gerhards. "Determination of the Critical Period for Weed Control in Corn." Weed Technology 27, no. 1 (2013): 63–71. http://dx.doi.org/10.1614/wt-d-12-00059.1.

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Field experiments were conducted in western Atakora, Benin, to determine the critical time period of weed competition in hand-weeded corn. Weeds were removed until different crop growth stages and then allowed to reemerge. Other treatments began weed control at different growth stages (four-, eight-, and ten-leaf stages and flowering) and were maintained until harvest. One treatment was permanently kept weed-free and one treatment was uncontrolled until harvest. Yields without weed competition ranged from 2.8 to 3.4 t ha−1. As expected, yield loss increased with duration of weed infestation an

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Tursun, Nihat, Bekir Bükün, Sinan Can Karacan, Mathieu Ngouajio, and Hüsrev Mennan. "Critical Period for Weed Control in Leek (Allium porrum L.)." HortScience 42, no. 1 (2007): 106–9. http://dx.doi.org/10.21273/hortsci.42.1.106.

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Field studies were conducted in Mersin, Turkey, in 2002 and 2003 to determine the critical period for weed control in leek and to investigate the effects of weed interference on weed biomass. The critical period for weed control in leek based on a 5% acceptable yield loss level was calculated by fitting logistic and Gompertz equations to relative yield data. Total fresh biomass of weeds increased as the duration of weed infestation increased. The beginning of the critical period for weed control was 7 days after transplanting in 2002 and 13 days after transplanting in 2003. The end of the crit

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Burnside, Orvin C., Melvin J. Wiens, Bobby J. Holder, et al. "Critical periods for weed control in dry beans (Phaseolus vulgaris)." Weed Science 46, no. 3 (1998): 301–6. http://dx.doi.org/10.1017/s0043174500089451.

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Weed removal experiments in dry edible beans were conducted during 1992 and 1993 at Crookston and Staples, MN. Ten manual weed removal treatments were studied to determine when a natural infestation of weeds first reduced dry bean yield, and when weed removal could be discontinued without further loss of seed yield. Major weeds in order of average biomass production on weedy check plots at dry bean harvest over locations and years were wild mustard, foxtail spp., redroot pigweed, common ragweed, wild buckwheat, hairy nightshade, and common lambsquarters. Hairy nightshade also emerged late in t

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Bertucci, Matthew B., Katherine M. Jennings, David W. Monks, et al. "Critical Period for Weed Control in Grafted and Nongrafted Watermelon Grown in Plasticulture." Weed Science 67, no. 2 (2018): 221–28. http://dx.doi.org/10.1017/wsc.2018.76.

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AbstractField experiments determined the critical period for weed control (CPWC) in grafted and nongrafted watermelon [Citrullus lanatus(Thumb.) Matsum. & Nakai] grown in plasticulture. Transplant types included ‘Exclamation’ seedless watermelon as the nongrafted control as well as Exclamation grafted onto two interspecific hybrid squash (ISH) rootstocks, ‘Carnivor’ and ‘Kazako’. To simulate weed emergence throughout the season, establishment treatments (EST) consisted of two seedlings each of common purslane (Portulaca oleraceaL.), large crabgrass [Digitaria sanguinalis(L.) Scop.], and ye

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Dissertations / Theses on the topic "Critical period of weed control"

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Martin, Steven George. "The critical period of weed control in canola (Brassica napus L.) in Manitoba." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0024/MQ51762.pdf.

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Refsell, Dawn E. "Integrated weed management in Kansas winter wheat." Diss., Kansas State University, 2013. http://hdl.handle.net/2097/15742.

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Doctor of Philosophy<br>Department of Agronomy<br>J. Anita Dille<br>Integrated weed management (IWM) is an ecological approach to weed control that reduces dependence on herbicides through understanding of weed biology and involves using multiple weed control measures including cultural, chemical, mechanical and biological methods. The critical period of weed control is the duration of the crop life cycle in which it must be kept weed-free to prevent yield loss from weed interference. Eight experiments were conducted throughout Kansas between October 2010 and June 2012 to identify this perio

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Halford, Christopher J. "Critical period of weed control for no-till field corn, Zea mays L., and [soybean], Glycine max (Merr.) on two soil types in southwestern Ontario." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ39830.pdf.

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Amisi, Karen Janila. "Strategies for managing weeds in a wheat, red clover, vegetable crop rotation transitioning to organic production." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1104246323.

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Apulei, Jessica. "Control of the cerebral cortex plasticity through the non-cell autonomous function of OTX2 homeoprotein." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS451.

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Au cours du développement postnatal, le cortex cérébral présente des périodes temporelles limitées de plasticité élevée, appelées périodes critiques (PC). Ces fenêtres, qui permettent aux circuits neuronaux d'être formés par des stimuli externes, se trouvent dans de nombreuses régions corticales et sont régulées par plusieurs facteurs qui influencent l'équilibre entre excitation et inhibition. La PC la plus étudiée est celle de la dominance oculaire dans le cortex visuel, et le facteur de transcription OTX2 joue un rôle essentiel. OTX2 est transféré à partir de sources extra-corticales vers un

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Miller, Alan B. "Determining the critical weed control period in direct seeded cabbage." 1989. http://catalog.hathitrust.org/api/volumes/oclc/22302441.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1989.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 140-144).

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Albers, Jeffrey J. "Grass weed ecology and control of atrazine-resistant Palmer amaranth (Amaranthus palmeri) in grain sorghum (Sorghum bicolor)." Thesis, 2018. http://hdl.handle.net/2097/38934.

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Master of Science<br>Department of Agronomy<br>Johanna A. Dille<br>An opportunity for postemergence (POST) grass weed control has recently been approved with ALS-resistant grain sorghum, however, grass weed emergence timing and crop tolerance to grass competition are not well understood. To address the importance of POST application timing, a critical period of weed control (CPWC) for grass competition in grain sorghum was developed. Field experiments were established near Manhattan and Hays, KS in 2016 and 2017, and near Hutchinson, KS in 2017 to determine the CPWC. Each site provided a diffe

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Achinelli, Fabio Germán. "Bases para el desarrollo de un sistema integrado de control de malezas en el establecimiento de plantaciones de Populus spp. del centro-norte de la provincia de Buenos Aires, Argentina." Tesis, 2007. http://hdl.handle.net/10915/1818.

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El objetivo general de esta tesis fue producir información científico-tecnológica básica para la implementación de un sistema integrado de control de malezas, que permita reemplazar al sistema mecánico en las plantaciones de álamo (Populus spp.) del centro-norte de la Provincia de Buenos Aires. Los trabajos se agruparon en tres líneas de investigación complementarias, en donde se abordaron grupos específicos de problemas. En la primera línea de trabajo se determinó la composición específica de la comunidad de malezas y la magnitud de su interferencia, se establecieron los niveles de control y

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Falkenberg, Nyland R. "INTERSPECIFIC AND INTRASPECIFIC COMPETITION OF COMMON SUNFLOWER (HELIANTHUS ANNUUS L.) IN FIELD CORN (ZEA MAYS L.)." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-05-301.

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Common sunflower is a competitive annual native dicot found in disturbed areas, on roadsides, dry prairies, and in row crops. Common sunflower is a competitive weed, but little data exist on interference, economic impacts, and competition in field corn. Field studies were conducted in 2006 and 2007 to 1) define the density-dependent effects of common sunflower competition with corn; 2) define the necessary weed-free periods of common sunflower in corn; 3) evaluate common sunflower control with herbicides; 4) and define the economic impact of common sunflower interference with corn. Corn grain

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Henriques, Imaculada da Conceição Ferreira. "Gestão de infestantes de culturas agrícolas em Angola. Casos de estudo - milho e batata na província do Huambo." Doctoral thesis, 2008. http://hdl.handle.net/10400.5/608.

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Doutoramento em Engenharia Agronómica - Instituto Superior de Agronomia<br>The main objectives of the studies carried out in three locals (Bailundo, Calenga and Chianga) were the weed identification and the study of the critical periods for weed management on potatoes and maize in the rainy and dry season. The effects of the interaction weeds x fertilization on crop yield was also determined. The varieties (imported and regional ones) response to nitrogen (maize) and phosphorus (potatoes) and its pest and diseases susceptibility was previously studied. Weed composition and biological types are

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Books on the topic "Critical period of weed control"

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Mendes, Kassio Ferreira. Atualidades no manejo de plantas daninhas em hortaliças fruto. Brazil Publishing, 2020. http://dx.doi.org/10.31012/978-65-5861-174-5.

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An integrated weed management system is perfectly aligned with the aim of producing healthy and environmentally sustainable vegetables. This integrated management is fundamental for vegetables, more than in other crops, due to its high commercial value, intensive culture, lack of competitiveness and low availability of registered herbicides. The integration of available weed control methods with a long-term strategy based on preventive and agronomic (cultural) practices is necessary to obtain a desired level of control, decrease the accumulation of the weed seed bank, increase weed diversity a

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Mendes, Kassio Ferreira, Adalin Cezar Moraes de Aguiar, Úrsula Ramos Zaidan, et al. Atualidades no manejo de plantas daninhas em hortaliças herbáceas. Brazil Publishing, 2021. http://dx.doi.org/10.31012/978-65-5861-185-1.

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An integrated weed management system is perfectly aligned with the aim of producing healthy and environmentally sustainable vegetables. This integrated management is fundamental for vegetables, more than in other crops, due to its high commercial value, intensive culture, lack of competitiveness and low availability of registered herbicides. The integration of available weed control methods with a long-term strategy based on preventive and agronomic (cultural) practices is necessary to obtain a desired level of control, decrease the accumulation of the weed seed bank, increase weed diversity a

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Mendes, Kassio Ferreira, Kamila Cabral Mielke, Marcelo Rodrigues dos Reis, et al. Atualidades no manejo de plantas daninhas em hortaliças tuberosas. Brazil Publishing, 2021. http://dx.doi.org/10.31012/978-65-5861-183-7.

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An integrated weed management system is perfectly aligned with the aim of producing healthy and environmentally sustainable vegetables. This integrated management is fundamental for vegetables, more than in other crops, due to its high commercial value, intensive culture, lack of competitiveness and low availability of registered herbicides. The integration of available weed control methods with a long-term strategy based on preventive and agronomic (cultural) practices is necessary to obtain a desired level of control, decrease the accumulation of the weed seed bank, increase weed diversity a

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(Editor), John L. Atlee, J. L. Vincent (Editor), and Antonino Gullo (Editor), eds. Critical Care Cardiology in the Perioperative Period. Springer, 2001.

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Buckholtz, Joshua W., and Andreas Meyer-Lindenberg. Genetic Perspectives on the Neurochemistry of Human Aggression and Violence. Edited by Turhan Canli. Oxford University Press, 2014. http://dx.doi.org/10.1093/oxfordhb/9780199753888.013.009.

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Violence is a devastating social phenomenon that is costly both to affected individuals and to society at large. Pathological aggression, especially reactive/impulsive aggression, is a cardinal symptom common to several psychiatric disorders—including antisocial personality disorder, borderline personality disorder, and psychopathy—that are associated with risk for violence. Thus, understanding the factors that predispose people to impulsive violence represents a crucial goal for psychology, neuroscience, and psychiatry. Although we are far from a full understanding of the etiopathophysiology

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Mahoney, Peter F., Emrys Kirkman, Sarah Watts, et al. Military anaesthesia. Edited by Peter F. Mahoney and Michel M. R. F. Struys. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199642045.003.0078.

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War and conflict have long been associated with improvements in medical care. The recent conflicts in Afghanistan and Iraq have been no exception. The high tempo of operations has presented the United Kingdom’s Defence Medical Services (DMS) with the need to care for injured service personnel and local nationals with highly complex patterns of injury. Patients have presented to the DMS with injuries not commonly encountered in civilian practice—typically the result of blast and ballistic mechanisms. The deployed anaesthetist is involved in all stages of the patient pathway from point of woundi

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Sanders, James W. Irish vs. Yankees. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190681579.001.0001.

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As a social historian, James W. Sanders takes a new look at a critical period in the development of Boston schools. Focusing on the burgeoning Irish Catholic population and framing the discussion around Catholic hierarchy, Sanders considers the interplay of social forces in the nineteenth and early twentieth centuries that led to Irish Catholics’ emerging with political control of the city and its public schools. The latter reduced the need for parochial schools; by at least the 1920s, the public and parochial schools had taken giant steps toward one another in theory and practice under the le

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Mitra, Durba. Indian Sex Life. Princeton University Press, 2020. http://dx.doi.org/10.23943/princeton/9780691196350.001.0001.

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During the colonial period in India, European scholars, British officials, and elite Indian intellectuals—philologists, administrators, doctors, ethnologists, sociologists, and social critics—deployed ideas about sexuality to understand modern Indian society. This book shows how deviant female sexuality, particularly the concept of the prostitute, became foundational to this knowledge project and became the primary way to think and write about Indian society. The book reveals that deviant female sexuality was critical to debates about social progress and exclusion, caste domination, marriage,

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Greenough, Paul. The uneasy politics of epidemic aid: the CDC’s mission to Cold War East Pakistan, 1958. Manchester University Press, 2017. http://dx.doi.org/10.7228/manchester/9781526110886.003.0002.

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Global smallpox eradication was achieved only after decades of unsuccessful experiments in smallpox-endemic countries. A case in point occurred in 1958 when a severe epidemic imposed heavy mortality on East Pakistan. In response a Bengali regional-nationalist ‘Citizens Provincial Epidemic Control Committee’ pushed aside the provincial health department and launched an eradication campaign based on student volunteers using foreign-donated vaccine. In a period of ten weeks thousands of volunteers vaccinated thirty million Bengalis, albeit relying on shortcuts in sterile technique and neglect of

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Andersson, Jenny. The Future of the World. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198814337.001.0001.

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The book is devoted to the intriguing post-war activity called—with different terms—futurism, futurology, future research, or futures studies. It seeks to understand how futurists and futurologists imagined the Cold War and post-Cold War world and how they used the tools and methods of future research to influence and change that world. Forms of future research emerged after 1945 and engaged with the future both as an object of science and as an object of the human imagination. The book carefully explains these different engagements with the future, and inscribes them in the intellectual histo

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Book chapters on the topic "Critical period of weed control"

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Dille, J. Anita. "Plant Morphology and the Critical Period of Weed Control." In Automation: The Future of Weed Control in Cropping Systems. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7512-1_4.

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Hensch, Takao K. "Inhibitory Circuits that Control Critical Period Plasticity in Developing Visual Cortex." In The Neural Basis of Early Vision. Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-68447-3_29.

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Hasson, Katie Ann. "Not a “Real” Period?: Social and Material Constructions of Menstruation." In The Palgrave Handbook of Critical Menstruation Studies. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0614-7_56.

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Abstract Hasson provides an examination of menstrual suppression technologies and the implications they have on understanding menstruation as both quintessentially natural and socially constructed, and even what ‘counts’ as menstruation. Taking the case of birth control pills, Hasson studies menstrual suppression by analyzing medical journal articles, FDA advisory committee transcripts, and website marketing. Across these contexts, she finds that new definitions of ‘menstruation’ converge on the distinction between bleeding that occurs when women are taking hormonal birth control and when they are not. Finally, Hasson draws attention to the concept of redefining a biological process that is deeply significant for gendered embodiment, as well as a challenge to consider both the social and material construction of gendered bodies.

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Chan, Irene Cheng Chu, Jing Ma, Huiyue Ye, and Rob Law. "A Comparison of Hotel Guest Experience Before and During Pandemic: Evidence from Online Reviews." In Information and Communication Technologies in Tourism 2021. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65785-7_52.

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AbstractThis paper compares the determinants of guest experience at luxury hotels in Mainland China before and during the pandemic—COVID-19. In particular, 740 Chinese reviews posted before the pandemic outbreak, and 1283 reviews posted during the pandemic were collected. Text analytics were applied to segment and count the frequency of words in these online reviews. The results show that the core dimensions of guest experiences at luxury hotels include services, room quality and settings, hotel facilities, dining, location, and environment. These core dimensions do not change regardless of the period before or during the pandemic. However, guests have higher expectations on hotel services such as late check-out and delivery service of takeaway during the pandemic. Online reviews amid-pandemic also contain words related to pandemic prevention and control measures, such as guest traffic and body temperature. Suggestions on operations and management are provided for hotel practitioners to improve their services during the critical period.

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Shelley, Casey, and Katherine Palmieri. "Glycemic Control After Cardiac Surgery." In Cardiothoracic Critical Care. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780190082482.003.0004.

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This chapter focuses on hyperglycemia after cardiac surgery, which is an independent predictor of morbidity and mortality, regardless of a history of diabetes. Acute hyperglycemia is common in the cardiac surgical perioperative period. Although many hyperglycemic patients undergoing cardiac surgery carry a preexisting diagnosis of diabetes mellitus, a significant portion will have either undiagnosed diabetes or insulin resistance. Other cardiac surgical patients may be non-diabetic but hyperglycemic due to the stress response related to surgery. This “stress hyperglycemia” is generally defined as a transient increase in blood glucose levels that develops during illness in a non-diabetic patient. A preadmission glycosylated hemoglobin (HbA1c) level measurement is helpful in distinguishing patients with stress hyperglycemia from those with undiagnosed diabetes mellitus and thus guide postoperative management. Patients with elevated HbA1c levels may need further interventions in order to optimize perioperative glycemic management pre-, intra-, and postoperatively. The chapter then details the Society of Thoracic Surgeons clinical practice guidelines and recommendations concerning perioperative glucose control.

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Marcinkevičienė, Aušra, Marina Keidan, Rita Pupalienė, et al. "Nonchemical Weed Control in Winter Oilseed Rape Crop in the Organic Farming System." In Organic Agriculture. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.91044.

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A field experiment was conducted during the 2014–2017 period at Aleksandras Stulginskis University (now—Vytautas Magnus University Agriculture Academy) on a Endocalcaric Endogleyic Luvisol (LV-can.gln) according to the WRB 2014. The three nonchemical weed control methods were explored: (1) thermal (using wet water steam), (2) mechanical (interrow loosening), and (3) self-regulation (smothering). In the thermal and mechanical weed control treatments, winter oilseed rape was grown with an interrow spacing of 48.0 cm and in weed smothering (self-regulation) treatment with an interrow spacing of 12.0 cm. Winter oilseed rape was grown in the soil with a regular humus layer (23–25 cm) and with a thickened humus layer (45–50 cm). Annual weeds predominated in the winter oilseed rape crop. In the soil with both humus layers, regular and thickened, the most efficient weed control method was mechanical weed management both during the autumn (efficacy 26.7–75.1%) and spring (efficacy 37.1–76.7%) growing seasons. Thermal and mechanical weed control in combination with the bio-preparations in droughty years significantly reduced the number of weed seedlings. Dry matter mass of weeds most markedly decreased through the application of the mechanical weed management method.

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Clarke, Victoria, and Walsh Andrew. "Community mental health nursing care of a person with complex needs." In Fundamentals of Mental Health Nursing. Oxford University Press, 2009. http://dx.doi.org/10.1093/oso/9780199547746.003.0010.

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In this chapter we will consider the care of a person living in the community with complex needs. In the past, the majority of people who suffered from severe and enduring mental health problems would almost certainly have spent their lives living in institutionalized care. Today, the majority of people with such problems live in the community, and the issue of how well (or not) they are supported is a critical one for those working as part of a community mental health team. In this chapter we introduce ‘Anthony’, a service user who has a long history of mental health problems. Anthony lives alone, and apart from his brother David, he has little contact with other people. Anthony has been referred to mental health services following a long period in which he has been having a depot injection from the nurse at his GP’s surgery. He has a complex range of problems including harassment from local youths, possible physical ill health, and housing problems, as well as a deterioration in his mental health state. In the UK, the move from hospital-based care towards a more community-oriented model is a relatively recent one. Many of the care practices and attitudes you may encounter today have their roots in an institutionalized model. From the 1840s onwards a system of ‘lunatic asylums’ was developed, the intention being that these should provide a humane and morally disciplined environment for those identified as needing care for mental health problems. They were oft en linked to county asylums and workhouses and became associated in the public view with both poverty and ‘madness’. For ordinary people at this time of great industrial and social change, working conditions were harsh and the asylum policy was intended to provide a degree of social control (Rogers and Pilgrim 2001). A popular ditty of the time illustrates some of the prevailing attitudes:… Outside the lunatic asylum, I was there and I was breaking stones, When up popped a lunatic and said to me ‘Good morning Mr Jones, How much a week do you get for doing that?’ ‘Sixteen shillings’ I cried, ‘That’s not enough to keep a wife and six kids, Step inside you silly fella, step inside’. (Anon)…

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Dunne, Éimhín, and Niall Fanning. "Postoperative Diastolic Heart Failure." In Cardiothoracic Critical Care. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780190082482.003.0034.

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This chapter explores acute diastolic heart failure, which presents a difficult management scenario in the early post–cardiac surgery period. Initial diagnosis is assisted by knowledge of the patient's medical history and intraoperative course. It is made using both clinical and echocardiographic parameters. Diastolic dysfunction often remains asymptomatic until late in the disease process. When it presents clinically, it can be associated with an abnormal ejection fraction or, more commonly, with preserved ejection fraction. The diagnosis of diastolic dysfunction requires 3 conditions: the presence of signs and/or symptoms, normal left ventricular systolic function, and increased diastolic filling pressures. Treatment for diastolic heart failure includes fluid therapy, diuretics, vasoactive medicines, control of ventricular rate in atrial fibrillation, and amiodarone.

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Littlejohn, James E. "Postoperative Septic Shock." In Cardiothoracic Critical Care. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780190082482.003.0010.

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This chapter discusses postoperative sepsis, which is a severe systemic inflammatory response to an infection. Sepsis is particularly difficult to diagnose in the early postoperative period because the systemic inflammatory response syndrome (SIRS) from cardiac surgery alone can mimic the early symptoms. Organ dysfunction identified using the Sequential Organ Failure Assessment (SOFA) score has been replacing the SIRS criteria as a more sensitive means by which to identify physiologic effects of infection. Evidence from studies using the SOFA-guided definition supports the use of the Sepsis-3 criteria for early identification and treatment of patients who are at high risk of adverse outcomes from sepsis and septic shock. The chapter also explores the role of biomarkers to expedite diagnosis and management of infections and/or sepsis. Procalcitonin levels are a biomarker that shows promise in predicting bacteremia, as well as lending clinical support to wean antibiotic duration in certain circumstances. The chapter then details the treatment for sepsis and septic shock. The first objective is to identify possible causes of infection and accomplish source control. Once sepsis has been identified, early resuscitation interventions are pivotal to reduce morbidity and mortality.

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Smith, Andrew F., and Allan M. Cyna. "Perioperative care." In Handbook of Communication in Anaesthesia & Critical Care. Oxford University Press, 2010. http://dx.doi.org/10.1093/oso/9780199577286.003.0015.

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The perioperative period can be a life-changing event for many patients, the effects of which can be lifelong for better or worse. The anaesthetist’s communication at this time can have a profound impact on the care of their patients in the matter of both short-term cooperation and long-term perceptions of their hospital experience. Induction of anaesthesia is a stressful time for many patients, young and old. There is an inevitable loss of control when the patient hands this over temporarily to the anaesthetist. In order to enhance cooperation, anaesthetists will reap unexpected benefits by avoiding the use of negative language. Well-meaning staff may, however, sabotage an otherwise smooth induction by telling patients, ‘There is nothing to worry about’ with the implicit suggestion that there is ‘something to worry about’. Unfortunately such well-meaning statements, even when directed at children, tend to yield the opposite effect of what is intended. Patient stress at this time increases suggestibility such that comments frequently function as inadvertent suggestions—be they positive or negative. This can be utilized to enhance the anaesthetist’s ability to provide a smooth, safe and stress-free induction. A typical series of pre-induction communications may go something like, … ‘Don’t worry we won’t drop you’. As the patient is transferred from a trolley to the operating table. ‘The blood pressure cuff gets really tight and may hurt and try not to move while it’s pumping up’. ‘That noise over there is just the nurse checking the drill!’… Explaining what is happening in simple straightforward non-technical language, and at the same time communicating in a positive way, is invariably the more useful approach. For example, …‘Welcome to the operating room Mr P ’. ‘You can relax as we move you to this other bed—you are quite safe’. ‘We will place some monitoring leads on so we can keep you safe and comfortable. A pulse monitor gently placed on your finger, an ECG on your chest and a blood pressure cuff on your arm. As the blood pressure cuff tightens and we take its reading this often allows patients to relax knowing how closely we are looking after them’. …

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Conference papers on the topic "Critical period of weed control"

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Ishii, Yoshihiko, Kazuaki Kitou, Tomohiko Ikegawa, Shin Hasegawa, and Hitoshi Ochi. "Analysis of ABWR Critical Control Operation by TRACG Code." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75143.

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Hitachi utilized three-dimensional transient analysis to design and verify a critical-control mode algorithm of an automatic power regulator (APR). TRACG has a three-dimensional neutron kinetics model based on diffusion theory and a six-equation two-phase flow model. To verify the APR critical-control mode algorithm, an external-neutron-source model that makes possible to simulate a sub-critical initial core, and an APR system model were developed and added on TRACG. The code was verified by comparison of measurements and calculation results of ABWR start-up operation under the critical-contro

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Wang, Ya-xu, Hong-quan Sun, Juan Lv, and Zhi-cheng Su. "Research on the deficit irrigation scheduling to winter wheat at critical period based on crop modeling method." In 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control. Atlantis Press, 2016. http://dx.doi.org/10.2991/icmemtc-16.2016.120.

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Ishii, Yoshihiko, Kazuaki Kitou, Tomohiko Ikegawa, Shin Hasegawa, and Hitoshi Ochi. "Analysis of ABWR Critical Control and Heat-Up Control Operation by TRACG Code." In 18th International Conference on Nuclear Engineering. ASMEDC, 2010. http://dx.doi.org/10.1115/icone18-29285.

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Most startup and shutdown operations in advanced boiling water reactors (ABWRs) are automated by an automatic power regulator (APR). Hitachi and Hitachi-GE utilized the three-dimensional transient analysis code TRACG to design and verify the APR control algorithms. To verify the algorithms, an external neutron source model that makes it possible to simulate a sub-critical initial core, a water temperature reactivity model, a startup range neutron monitor (SRNM) model, and the APR system models were developed and coded onto the TRACG code. The improved TRACG code has been tested and verified wi

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Polin V.D., V. D., and I. F. Binaliev I.F. "Influence of weather conditions on the specific and quantitative composition of the weed component in winter wheat crops." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-21.

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Dutzer, Michel, Jean Pierre Vervialle, Alain Andre´, and Albert Marchiol. "Centre de la Manche Institutional Control Period: After the First Safety Review." In ASME 2011 14th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2011. http://dx.doi.org/10.1115/icem2011-59236.

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Centre de la Manche disposal facility is the first French surface disposal facility dedicated to low and intermediate level short lived radioactive waste. It started up in 1969. After a continuous improvement, in the design of disposal vaults, in operational modes, in the whole process of waste management, in the safety approach, the last packages were received in 1994. 527,000 m3 of waste packages have been disposed during the 25 years of operation. The facility was licensed for the institutional control period in 2003. The disposal vaults are covered with a multilayer capping system that inc

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Jangra, Sidharth, Chien Hsin Chung, Qingzhi Lai, and Xinfan Lin. "Optimal Maintenance of Electric Vehicle Battery System Through Overnight Home Charging." In ASME 2019 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/dscc2019-9004.

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Abstract Plug-in electric vehicle (PEV) is emerging as one of the most viable choices for the transportation sector to reduce fossil fuel consumption and CO2 emission. As the most critical component of PEV, battery systems require intensive management and diagnostics to ensure safety, efficiency, and endurance. Most existing studies focus on battery management when PEVs are under operation while none has explored battery maintenance during overnight parking, which accounts for a majority of the time (&gt; 12 hours per day). Battery states during this period significantly affect the lifetim

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Zhu, Qilun, Robert Prucka, Michael Prucka, and Hussein Dourra. "Model Predictive Engine Speed Control for Transmissions With Dog Clutches." In ASME 2016 Internal Combustion Engine Division Fall Technical Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/icef2016-9388.

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The need for cost-effective fuel economy improvements has driven the introduction of automatic transmissions with an increasing number of gear ratios. Incorporation of interlocking dog clutches in these transmissions decreases package space and increases efficiency, as compared to conventional dry or wet clutches. Unlike friction based clutches, interlocking dog clutches require very precise rotational speed matching prior to engagement. Precise engine speed control is therefore critical to maintaining high shift quality. This research focuses on controlling the engine speed during a gearshift

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Rogers, Austin, and Bryan Rasmussen. "A Generalized Approach for Commercial and Industrial Load Shifting Control." In ASME 2017 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dscc2017-5191.

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Load shifting is one means whereby buildings may reduce their peak demand and provide other services to the electric grid. Current rate tariffs penalize facility peak demand, and large commercial and industrial buildings may realize cost savings by reducing this facility peak demand. The successful shifting of electric load requires some knowledge or prediction of the peak demand. This prediction is generally imperfect, and the resulting load shifting control is sub-optimal. This paper develops the optimal load shifting operations using a battery energy storage system under certain assumptions

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Bellon, J. L., J. D. Szefner, C. Castellanos, et al. "COAGULATION CONTROL MADE IN FIFTEEN RECIPIENTS OF JARVIK 7 ARTIFICIAL HEART. AN STATISTICAL STUDY." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643095.

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From April to December of 1986 fifteen Jarvik-7 artifi cial heart were temporally implanted until definitive-heart transplantation in 12 men and 3 women of 18 to 55 years old.Jarvik's stay ranged between 48 hours to 20 days, The coagulation control applied was:PT,APTT, reptilase,fibrinogen,platelet aggregation by turbidi-metry to ADP,epinephrine,collagen and arachidonic acid thromboelastography in whole blood,plasma and serum antithrombin III and activated factor X by specific substrates,haematocrit, platelet count,platelet factor 4 and B-thromboglobulin by enzymeimmunoassays,fibrin/ fibrinoge

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Devarakonda, Maruthi, Russell Tonkyn, Diana Tran, Jong H. Lee, and Darrell Herling. "Modeling Competitive Adsorption in Urea-SCR Catalysts for Effective Low Temperature NOx Control." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39977.

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Although the SCR technology exhibits higher NOx reduction efficiency over a wider range of temperatures among the lean NOx reduction technologies, further improvement in low-temperature performance is required to meet the future emission standards and to lower the system cost. In order to improve the catalyst technologies and optimize the system performance, it is critical to understand the reaction mechanisms and catalyst behaviors with respect to operating conditions. For example, it is well known that the ammonia coverage on catalyst surface is critical for NOx reduction efficiency. However

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Reports on the topic "Critical period of weed control"

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Li, Howell, Jijo K. Mathew, Woosung Kim, and Darcy M. Bullock. Using Crowdsourced Vehicle Braking Data to Identify Roadway Hazards. Purdue University, 2020. http://dx.doi.org/10.5703/1288284317272.

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Modern vehicles know more about the road conditions than transportation agencies. Enhanced vehicle data that provides information on “close calls” such as hard braking events or road conditions during winter such as wheel slips and traction control will be critical for improving safety and traffic operations. This research applied conflict analyses techniques to process approximately 1.5 million hard braking events that occurred in the state of Indiana over a period of one week in August 2019. The study looked at work zones, signalized intersections, interchanges and entry/exit ramps. Qualitat

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Thompson, Joseph. How WASH Programming has Adapted to the COVID-19 Pandemic. Institute of Development Studies (IDS), 2020. http://dx.doi.org/10.19088/slh.2021.001.

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Since first appearing at the end of 2019, the novel coronavirus disease (COVID-19) has spread at a pace and scale not seen before. On 11 March 2020, the World Health Organization (WHO) declared COVID-19 a pandemic. A rapid response was called for, and actors across the globe worked quickly to develop sets of preventative measures to contain the disease. One mode of transmission identified early on in the crisis was via surfaces and objects (fomites) (Howard et al. 2020). To combat this, hand hygiene was put forward as a key preventative measure and heralded as ‘the first line of defence agains

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