Academic literature on the topic 'Withdrawn behaviors'

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Journal articles on the topic "Withdrawn behaviors"

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Fujiki, Martin, Bonnie Brinton, Melanie Morgan, and Craig H. Hart. "Withdrawn and Sociable Behavior of Children With Language Impairment." Language, Speech, and Hearing Services in Schools 30, no. 2 (April 1999): 183–95. http://dx.doi.org/10.1044/0161-1461.3002.183.

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This study examined the dimensions of withdrawal and sociability in children with language impairment (LI) and their typically developing chronological age-matched peers. Classroom teachers rated the withdrawn and sociable behaviors of 41 children with LI and 41 typically developing peers using the Teacher Behavioral Rating Scale (TBRS, Hart & Robinson, 1996). Children were sampled from the age ranges of 5 to 8 years and 10 to 13 years. Subtypes of both withdrawn (solitary-passive withdrawal, solitary-active withdrawal, reticence) and sociable (impulse control/likability, prosocial) behavior were examined. Teachers rated children with LI as displaying higher levels of reticent behavior than typically developing children. Teachers also rated boys with LI as displaying significantly higher levels of solitary-active withdrawal than girls with LI or typically developing children of either gender. The groups did not differ on solitary-passive withdrawal, although boys were rated higher than girls. In the dimension of sociable behavior, children with LI were rated significantly below typical peers on subtypes of impulse control/likability and prosocial behavior. The relationship between language impairment and withdrawn and sociable behavior is complex. Although language impairment is an important factor in social difficulty, the current results suggest that language impairment is not the sole factor leading to social problems in children with LI. Assessment and intervention procedures for children with language and social problems should take the complex nature of this relationship into account.
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Gregor, Danielle M., Wanhong Zuo, Rao Fu, Alex Bekker, and Jiang-Hong Ye. "Elevation of Transient Receptor Potential Vanilloid 1 Function in the Lateral Habenula Mediates Aversive Behaviors in Alcohol-withdrawn Rats." Anesthesiology 130, no. 4 (April 1, 2019): 592–608. http://dx.doi.org/10.1097/aln.0000000000002615.

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Abstract Editor’s Perspective What We Already Know about This Topic What This Article Tells Us That Is New Background Recent rat studies indicate that alcohol withdrawal can trigger a negative emotional state including anxiety- and depression-like behaviors and hyperalgesia, as well as elevated glutamatergic transmission and activity in lateral habenula neurons. TRPV1, a vanilloid receptor expressed in the habenula, is involved in pain, alcohol dependence, and glutamatergic transmission. The authors therefore hypothesized that TRPV1 contributes to the changes in both the behavioral phenotypes and the habenula activity in alcohol-withdrawn rats. Methods Adult male Long-Evans rats (n = 110 and 280 for electrophysiology and behaviors, respectively), randomly assigned into the alcohol and water (Naïve) groups, were trained to consume either alcohol or water-only using an intermittent-access procedure. Slice electrophysiology was used to measure spontaneous excitatory postsynaptic currents and firing of lateral habenula neurons. The primary outcome was the change in alcohol-related behaviors and lateral habenula activity induced by pharmacologic manipulation of TRPV1 activity. Results The basal frequency of spontaneous excitatory postsynaptic currents and firing of lateral habenula neurons in alcohol-withdrawn rats was significantly increased. The TRPV1 antagonist capsazepine (10 µM) induced a stronger inhibition on spontaneous excitatory postsynaptic currents (mean ± SD; by 26.1 ± 27.9% [n = 11] vs. 6.7 ± 18.6% [n = 17], P = 0.027) and firing (by 23.4 ± 17.6% [n = 9] vs. 11.9 ± 16.3% [n = 12], P = 0.025) in Withdrawn rats than Naive rats. By contrast, the TRPV1 agonist capsaicin (3 μM) produced a weaker potentiation in Withdrawn than Naïve rats (spontaneous excitatory postsynaptic currents: by 203.6 ± 124.7% [n = 20] vs. 415.2 ± 424.3% [n = 15], P < 0.001; firing: 38.1 ± 14.7% [n = 11] vs. 73.9 ± 41.9% [n = 11], P < 0.001). Conversely, capsaicin’s actions in Naïve but not in Withdrawn rats were significantly attenuated by the pretreatment of TRPV1 endogenous agonist N-Oleoyldopamine. In Withdrawn rats, intra-habenula infusion of TRPV1 antagonists attenuated hyperalgesia and anxiety-like behaviors, decreased alcohol consumption upon resuming drinking, and elicited a conditioned place preference. Conclusions Enhanced TRPV1 function may contribute to increased glutamatergic transmission and activity of lateral habenula neurons, resulting in the aberrant behaviors during ethanol withdrawal.
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Fujiki, Martin, Bonnie Brinton, Ted Isaacson, and Connie Summers. "Social Behaviors of Children With Language Impairment on the Playground." Language, Speech, and Hearing Services in Schools 32, no. 2 (April 2001): 101–13. http://dx.doi.org/10.1044/0161-1461(2001/008).

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Purpose: This pilot study examined the social behaviors of children with language impairment (LI) and their typical peers on the playground. Method: Eight children with LI and their age-matched peers were videotape recorded for 45 minutes during morning and lunch recesses. Samples were divided into 5-second segments and coded according to the child’s behavior occurring during the segment. The behavior displayed during each interval was then coded into one of 37 subcategories. These subcategories were grouped into six general categories of (a) peer interaction, (b) adult interaction, (c) withdrawal, (d) aggression, (e) victimization, and (f) other. Results: Significant differences were observed in the categories of peer interaction and withdrawal. Typical children spent significantly more time interacting with peers than did children with LI. Conversely, children with LI demonstrated significantly more withdrawn behaviors than did their typical peers. Analyses of effect size using ω 2 indicated that group membership accounted for approximately 30% of the variability in both of these types of playground behavior. No other significant differences were observed. These findings support the conclusions of researchers using teacher interview procedures, indicating that children with LI are more withdrawn than their typical peers at school. Clinical Implications: Specific intervention targeting social language skills in playground contexts may be warranted to include children with LI in social interactions at recess.
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Coltri, Letícia Pin, Vivian Tacyani Bonassoli, Humberto Milani, and Rúbia Maria Weffort de Oliveira. "Evaluation of anxiety-like behaviors following ethanol withdrawal in mice: effects of cannabidiol." Acta Scientiarum. Health Sciences 42 (July 29, 2020): e53001. http://dx.doi.org/10.4025/actascihealthsci.v42i1.53001.

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The abrupt interruption of ethanol consumption increases anxiety-like behaviors in rodents and may reflect different aspects of ethanol dependence in humans. Measuring emotional behaviors resulting from ethanol withdrawal may aid in testing potential pharmacological agents for the treatment of ethanol dependence. In the present study, we used forced expositon to ethanol 20% during 10 days to mice, followed by abrupt withdrawal of the substance. The animals were evaluated 7, 24 and 35 h after ethanol withdrawal in three different behavioral paradigms, i.e., the open field (OF), light dark (LD) transition and elevated plus maze (EPM), tests usually used to measure anxiety-like behaviors. This was done with the aim of identifying the best interval as well as the most appropriate behavioral test to detect the effects of drugs that can relieve anxiety induced by ethanol withdrawal in mice. We also evaluated the effect of cannabidiol (CBD 10, 30 and 60 mg/kg) in ethanol withdrawn mice because it has been shown to alliviate drug addicton and present anti-anxiety effects. Our results show significant behavioral changes at 24 h following ethanol withdrawal. Diazepam (4 mg/kg), used as a positive control, counteracted the effects of ethanol withdrawal in OF, LD box and EPM. Cannabidiol attenuated anxiety-like behavior produced at 24 h after abstinence from ethanol exposure only in the EPM test.
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Hart, Kerstine I., Martin Fujiki, Bonnie Brinton, and Craig H. Hart. "The Relationship Between Social Behavior and Severity of Language Impairment." Journal of Speech, Language, and Hearing Research 47, no. 3 (June 2004): 647–62. http://dx.doi.org/10.1044/1092-4388(2004/050).

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The Teacher Behavior Rating Scale (C. H. Hart & C. C. Robinson, 1996) was used to compare the withdrawn and sociable behaviors of 41 children with specific language impairment (SLI) and 41 typically developing peers. Three subtypes of withdrawal (reticence, solitary-active, solitary-passive) and 2 subtypes of sociable behavior (prosocial, impulse control/likeability) were examined. Teachers rated children with SLI as exhibiting higher levels of reticence and solitary-passive withdrawal than typical children. Teachers also rated the children with SLI as demonstrating lower levels of both types of sociable behavior than typical children. The group with SLI was then separated into subgroups of children having more severe and less severe language impairment. These groupings did not differ on comparisons involving withdrawn behavior, except that girls with more severe receptive problems demonstrated higher levels of solitary-passive withdrawal than did girls with less severe language problems. Children with less severe receptive language impairment demonstrated higher levels of proficiency on both types of sociable behavior than their peers with more severe impairment. Children with more severe expressive problems also demonstrated poorer prosocial behavior—but not poorer impulse control/likeability—than children with less severe expressive problems. KEY WORDS : social skills, language impairment, socioemotional, withdrawal, social competence
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Lee, Kaziya M., Michal A. Coelho, Kimberly R. Sern, MacKayla A. Class, Mark D. Bocz, and Karen K. Szumlinski. "Anxiolytic Effects of Buspirone and MTEP in the Porsolt Forced Swim Test." Chronic Stress 1 (February 2017): 247054701771298. http://dx.doi.org/10.1177/2470547017712985.

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Traditionally, a reduction in floating behavior or immobility in the Porsolt forced swim test is employed as a predictor of anti-depressant efficacy. However, over the past several years, our studies of alcohol withdrawal-induced negative affect consistently indicate the coincidence of increased anxiety-related behaviors on various behavioral tests with reduced immobility in the forced swim test. Further, this behavioral profile correlates with increased mGlu5 protein expression within limbic brain regions. As the role for mGlu5 in anxiety is well established, we hypothesized that the reduced immobility exhibited by alcohol-withdrawn mice when tested in the forced swim test might reflect anxiety, possibly a hyper-reactivity to the acute swim stressor. Herein, we evaluated whether or not the decreased forced swim test immobility during alcohol withdrawal responds to systemic treatment with a behaviorally effective dose of the prototypical anxiolytic, buspirone (5 mg/kg). We also determined the functional relevance of the withdrawal-induced increase in mGlu5 expression for forced swim test behavior by comparing the effects of buspirone to a behaviorally effective dose of the mGlu5 negative allosteric modulator MTEP (3 mg/kg). Adult male C57BL/6J mice were subjected to a 14-day, multi-bottle, binge-drinking protocol that elicits hyper-anxiety and increases glutamate-related protein expression during early withdrawal. Control animals received only water. At 24-h withdrawal, animals from each drinking condition were subdivided into groups and treated with an intraperitoneal injection of buspirone, MTEP, or vehicle, 30 min prior to the forced swim test. Drug effects on general locomotor activity were also assessed. As we reported previously, alcohol-withdrawn animals exhibited significantly reduced immobility in the forced swim test compared to water controls. Both buspirone and MTEP significantly increased immobility in alcohol-withdrawn animals, with a modest increase also seen in water controls. No significant group differences were observed for locomotor activity, indicating that neither anxiolytic was sedating. These results provide predictive validity for increased swimming/reduced immobility in the forced swim test as a model of anxiety and provide novel evidence in favor of mGlu5 inhibition as an effective therapeutic strategy for treating hyper-anxiety during alcohol withdrawal.
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Ash, Andrea C., Mabel L. Rice, and Sean M. Redmond. "Effect of Language Context on Ratings of Shy and Unsociable Behaviors in English Language Learner Children." Language, Speech, and Hearing Services in Schools 45, no. 1 (January 2014): 52–66. http://dx.doi.org/10.1044/2013_lshss-13-0020.

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Purpose The primary goal of this study was to explore the effect of language context on the socially withdrawn behaviors of school-age-children who are English language learners (ELLs) from middle– to high–socioeconomic status (SES) backgrounds. This is one of the 1st studies to address the frequently confused concepts of shyness and unsociability as independent constructs within the ELL population. The authors of this study also investigated the feasibility of an experimental parent and child questionnaire that examines shyness and unsociability across native-language and English-speaking contexts. Method Children and mothers (34 of whom were ELLs and 37 of whom were native English speakers) were administered an experimental questionnaire examining the children's shy and unsociable behavior in native-language and English-speaking contexts. Results Children and mothers in the ELL group reported significantly higher ratings of shy behavior in English-speaking versus native-language contexts, whereas unsociable ratings did not differ across language contexts. Conclusions Shyness and unsociability are distinguishable behaviors in ELL children, and researchers should consider these constructs when examining withdrawal. In addition, examining ELL children's behavior across language contexts provides a valuable method for investigating language-influenced behavioral problems. This study demonstrates the need for service providers to evaluate behavior across subtype and language context before pathologizing withdrawal in ELL children.
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Costa, Raquel, and Barbara Figueiredo. "Infants' behavioral and physiological profile and mother–infant interaction." International Journal of Behavioral Development 36, no. 3 (February 29, 2012): 205–14. http://dx.doi.org/10.1177/0165025411428248.

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This study aims to (a) identify and profile groups of infants according to their behavioral and physiological characteristics, considering their neurobehavioral organization, social withdrawal behavior, and endocrine reactivity to stress, and to (b) analyze group differences in the quality of mother–infant interaction. Ninety-seven 8-week-old infants were examined using the Neonatal Behavioral Assessment Scale and the Alarm Distress Baby Scale. Cortisol levels were measured both before and after routine inoculation between 8 and 12 weeks. At 12 to 16 weeks mother–infant interaction was assessed using the Global Rating Scales of Mother–Infant Interaction. Three groups of infants were identified: (a) “withdrawn”; (b) “extroverted”; (c) “underaroused.” Differences between them were found regarding both infant and mother behaviors in the interaction and the overall quality of mother–infant interaction. The identification of behavioral and physiological profiles in infants is an important step in the study of developmental pathways.
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Marchant, Michelle R., Brock R. Solano, Adam K. Fisher, Paul Caldarella, K. Richard Young, and Tyler L. Renshaw. "Modifying socially withdrawn behavior: A playground intervention for students with internalizing behaviors." Psychology in the Schools 44, no. 8 (November 2007): 779–94. http://dx.doi.org/10.1002/pits.20265.

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Olswang, Lesley B., and Barbara A. Bain. "Monitoring phoneme acquisition for making treatment withdrawal decisions." Applied Psycholinguistics 6, no. 1 (March 1985): 17–37. http://dx.doi.org/10.1017/s0142716400005993.

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ABSTRACTThis study examined phoneme acquisition in three phonologically impaired children to determine whether treatment needed to be provided continually until correct productions were consistently observed during conversation. This was done by examining the effects of withdrawing treatment on several target phonemes at predetermined performance levels. In addition, production of the target behaviors in untrained single words versus connected speech was compared as measures for monitoring progress during the phoneme acquisition process. Both ABA(B) and multiple baseline time series designs were employed. The results indicated two general patterns of phoneme acquisition. In one, the children continued to progress in phoneme acquisition, even though direct treatment on the target behavior had been withdrawn relatively early in the acquisition process. In the other, the children failed to continue their progress in phoneme acquisition when treatment was withdrawn, requiring the reintroduction of treatment until high levels of correct production were maintained over several weeks. In all cases, production of the target behavior in untrained single words and connected speech reflected a similar phoneme acquisition trend.
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Dissertations / Theses on the topic "Withdrawn behaviors"

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Haskin, Heather. "The Withdrawn and Sociable Behaviors of Children with Specific and Nonspecific Language Impairment." Diss., CLICK HERE for online access, 2009. http://contentdm.lib.byu.edu/ETD/image/etd3129.pdf.

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Bradshaw, Amanda Lyn. "Assessing Effects of IQ on Sociable and Withdrawn Behaviors in Children with Language Impairment." Diss., CLICK HERE for online access, 2006. http://contentdm.lib.byu.edu/ETD/image/etd1356.pdf.

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Sellers, Jennifer Anne. "Extending functional analysis methodology to identify the function of peer-related withdrawn and peer-related negative social behaviors for young children with autism spectrum disorders." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0013440.

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Gavinski, Molina Marie-Helene. "What children know about social withdrawal, age-related changes in children's descriptions of socially withdrawn behaviours." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0019/MQ48386.pdf.

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Gavinski, Molina Marie-Helene Carleton University Dissertation Psychology. "What children know about social withdrawal: age-related changes in children's descriptions of socially withdrawn behaviours." Ottawa, 1999.

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Finkbeiner, Nicole M. "The associations of depression symptoms, withdrawal behaviors, and withdrawal cognitions with intimate behavior and pleasure from partner's intimate behaviors among clinical couples." College Park, Md. : University of Maryland, 2008. http://hdl.handle.net/1903/8320.

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Thesis (M.S.) -- University of Maryland, College Park, 2008.
Thesis research directed by: Dept. of Family Science. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
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Waung, Marie Pauline. "The effects of behavioral and cognitive/affective coping orientation on job withdrawal behaviors /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487779439846485.

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Peters, Patricia L. "Assortative mating among men and women with histories of aggressive, withdrawn, and aggressive-withdrawn behaviour." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0016/NQ43579.pdf.

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Wayland, Leigh Ann Louise. "Conjoint behavioural consultation with children who are socially withdrawn." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0001/MQ37244.pdf.

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Alexander, James Fitzgerald. "Mitigating the Effects of Withdrawal Behavior on Organizations." ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/2392.

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Withdrawal behaviors such as absenteeism, tardiness, turnover intention, and employee disengagement adversely affect organizations, costing billions of dollars annually. However, there is limited research on the best practices for minimizing the effects of employee withdrawal. The purpose of this qualitative case study was to explore best practices leaders need to mitigate the effects of withdrawal behaviors on organizations. The social learning theory (SLT) served as the conceptual framework for this study. Ten participants were interviewed, including 4 healthcare leaders and 6 health service workers from a correctional facility nursing department in the Southeastern United States. Scholars have indicated that correctional healthcare personnel exhibit high levels of employee withdrawal including absenteeism and turnover. Data from semistructured interviews were analyzed and compared with training and disciplinary policy statements for methodological triangulation. Several themes emerged including a need for leadership engagement, staff accountability, and an organizational culture that discourages withdrawal behaviors. The findings may contribute to the body of knowledge regarding best practices that leaders can utilize to diminish adverse effects withdrawal behaviors have on organizations. Information derived from this study might contribute to social change by decreasing the expense of employee withdrawal behaviors on citizens and reallocate taxpayer resources to appropriations necessary for public inpatient mental health treatment facilities.
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Books on the topic "Withdrawn behaviors"

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Gojmerac, Christina Barbara. Perception of emotional facial expressions elicit approach and withdrawal behaviour. Ottawa: National Library of Canada, 2002.

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A, Wilson Judith, ed. Addictionary: A primer of recovery terms and concepts, from abstinence to withdrawal. Center City, Minn: Hazelden, 1994.

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A, Wilson Judith, ed. Addictionary: A primer of recovery terms and concepts, from abstinence to withdrawal. New York: Simon & Schuster, 1992.

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Townsend, John Sims. Hiding from love: How to change the withdrawal patterns that isolate and imprison you. Colorado Springs, Colo: NavPress, 1991.

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Townsend, John Sims. Hiding from love: How to change the withdrawal patterns that isolate and imprison you : now with discussion guide. Grand Rapids, Mich: Zondervan Pub. House, 1996.

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The happy minimalist: Financial independence, good health, and a better planet for us all. United States: Xlibris, 2008.

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Maurice, Chazan, ed. Helping socially withdrawn and isolated children and adolescents. London: Cassell, 1998.

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Wise, Lowell C. SYSTEMATIC REDUCTION IN PARTICIPATION: A STUDY OF AN EMPLOYEE WITHDRAWAL BEHAVIOR (WITHDRAWAL BEHAVIOR). 1990.

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Valpey, Robin, and Amy Crawford-Faucher. Behavioral Health Emergencies (DRAFT). Edited by Raghavan Murugan and Joseph M. Darby. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190612474.003.0016.

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Behavioral health emergencies typically involve agitation with autonomic instability. Many medical and psychiatric conditions can precipitate agitation that could necessitate rapid response interventions. Non-pharmacologic therapies can be useful to modulate agitation or delirium, but the mainstay of pharmacologic treatment is either antipsychotics or benzodiazepines, depending on the underlying problem. Psychosis and delirium generally respond better to antipsychotics, while mania, catatonia, toxidromes, withdrawal, and agitation from head injuries are more effectively treated with benzodiazepines. Prompt recognition of severe alcohol withdrawal can improve mortality; getting a history of other drug use, including “designer drugs” can help inform care. This chapter discusses the treatment of agitation, catatonia, medication-related disturbances, and intoxication and withdrawal during emergencies.
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Finlay, John Reginald. Patterns of self disclosing behaviour amongst aggressive, withdrawn and socially competent teenagers. 1987.

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Book chapters on the topic "Withdrawn behaviors"

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Bertin, Francisca, Javier Bustamente, Rocío Angulo, Mario A. Laborda, Gonzalo Miguez, and Vanetza E. Quezada-Scholz. "Withdrawal." In Encyclopedia of Animal Cognition and Behavior, 1–4. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-47829-6_429-1.

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Francis, Greta, and Thomas H. Ollendick. "Social Withdrawal." In Child Behavior Therapy Casebook, 31–41. Boston, MA: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-0993-2_4.

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Kanungo, Rabindra N., and Manuel Mendonca. "Employee Withdrawal Behavior." In Industrial and Organizational Psychology: Theory, Research, and Practice, 71–94. Boston, MA: Springer US, 2002. http://dx.doi.org/10.1007/978-1-4615-0599-0_4.

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Dawson, R. L. "The Withdrawn or Shy Child." In Teacher Information Pack 1: Behaviour, 429–40. London: Macmillan Education UK, 1985. http://dx.doi.org/10.1007/978-1-349-08997-0_45.

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Greenberg, Gary. "Approach/Withdrawal Theory." In Encyclopedia of Animal Cognition and Behavior, 1–6. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-47829-6_1074-1.

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Haasio, Ari. "Information Seeking Behaviour of the Socially Withdrawn." In New Trends and Challenges in Information Science and Information Seeking Behaviour, 23–32. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68466-2_3.

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Diana, Marco. "Dopaminergic Neurotransmission and Drug Withdrawal." In Advances in Behavioral Biology, 123–30. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4899-0194-1_14.

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D’Souza, Manoranjan S., and Athina Markou. "Neural Substrates of Psychostimulant Withdrawal-Induced Anhedonia." In Behavioral Neuroscience of Drug Addiction, 119–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/7854_2009_20.

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Rotundo, Maria, and Paul E. Spector. "New Perspectives on Counterproductive Work Behavior Including Withdrawal." In Handbook of Employee Selection, 476–508. Second edition. | New York, NY : Routledge, 2017.: Routledge, 2017. http://dx.doi.org/10.4324/9781315690193-22.

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Kostrzewa, Richard M., and Ryszard Brus. "Lifelong Rodent Model of Tardive Dyskinesia—Persistence After Antipsychotic Drug Withdrawal." In Neurotoxin Modeling of Brain Disorders—Life-long Outcomes in Behavioral Teratology, 353–62. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/7854_2015_395.

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Conference papers on the topic "Withdrawn behaviors"

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Yoo, Wan-Suk, Kun-Woo Kim, Deuk-Man An, and Jae-Wook Lee. "Comparison of Transient and Steady-State Behaviors in Unwinding Mechanism." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-47246.

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In this study, the transient analysis of a cable unwinding from a cylindrical spool package is first studied and compared to experiment. Then, a steady-state solution is also compared to transient solution. Cables are assumed to be withdrawn with a constant velocity through a fixed point which is located along the axis of the package. When the cable is flown out of the package, several dynamic forces, such as inertial force, Coriolis force, centrifugal force, tensile force, and fluid-resistance force are acting on the cable. Consequently, the cable becomes to undergo very nonlinear and complex unwinding behavior which is called unwinding balloon. In this paper, to prevent the problems during unwinding such as tangling or cutting, unwinding behaviors of cables in transient state were derived and analyzed. First of all, the governing equations of motion of cables unwinding from a cylindrical spool package were systematically derived using the extended Hamilton’s principles of an open system in which mass is transported at each boundary. And the modified finite difference methods are suggested to solve the derived nonlinear partial differential equations. Time responses of unwinding cables are calculated using Newmark time integration methods. The transient solution is compared to physical experiment, and then the steady-state solution is compared to transient solution.
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Hartenberger, Joel D., and Timothy J. O’Hern. "Experimental Investigation of Selective Withdrawal and Light Layer Entrainment of Stratified Immiscible Liquids." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-66278.

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The withdrawal of fluid from only one layer of a vertically stratified immiscible fluid system is often referred to as selective withdrawal. For a given withdrawal location, the ability to predict the maximum flow rate at which fluid from one layer can be withdrawn before an adjacent layer of fluid is also entrained is critical for many applications. The Strategic Petroleum Reserve (SPR) offers one such example where oil is stored above an underlying brine layer in large underground caverns. When oil is added to a cavern, a corresponding volume of brine must be withdrawn through a hanging string that extends through the oil into the brine layer. If the depth of the string below the oil-brine interface is insufficient for a given flow rate, oil may be inadvertently withdrawn along with the expected brine — potentially introducing oil into the brine handling system and leading to costly cleanup to prevent environmental contamination. Laboratory experiments with two immiscible liquids (silicone oil and water or brine) have been conducted to investigate this behavior for typical SPR cavern conditions. In these experiments the higher density fluid is withdrawn through a tube below the liquid-liquid interface. As the withdrawal point is raised closer to the interface for a given flow rate, or the flow rate is increased for a given submergence, the overlying lower density layer begins to entrain along with the higher density liquid. The critical withdrawal depth at which transition to light layer entrainment occurs is measured for a given flow rate of the lower liquid, and the process is repeated for different flow rates. Most prior literature concerning the transition from selective withdrawal has examined removal of the lower density fluid and the transition to entraining the higher density fluid, whereas this work focuses on the inverse. Experiments were performed for a range of different light layer silicone oils and heavy layer water or brine, covering a range of density and viscosity ratios. Three separate withdrawal tubes of differing diameter were placed in two orientations to establish the depth at which selective withdrawal began as a function of fluid properties. The data show that, at the highest flow rates, the transition to light layer entrainment can occur when the withdrawal point is up to two diameters below the liquid-liquid interface, depending on the lower fluid density. Particle Image Velocimetry (PIV) was performed to map the instantaneous velocity field. The strength of the velocity vectors increased dramatically near the withdrawal tube opening showing the region in which inertial forces dominated the flow pattern.
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Nakhamkin, M., E. Swensen, R. B. Schainker, and B. Mehta. "CAES Plant Performance and Economics as a Function of Underground Salt Dome Storage Transient Processes." In ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-143.

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This paper presents a discussion of the computer model developed to quantify the effects of transient processes occurring during injection, storage and withdrawal of compressed air from underground storage in a salt dome. The following mechanisms are considered when modelling the thermodynamic behavior of the compressed air within the cavern: 1) Temperature variations due to the compression and expansion of the air. 2) Heat transfer by convection at the cavern wall. 3) Heat transfer by conduction inside the salt formation. 4) Enthalpy changes as air is injected into and withdrawn from the cavern. The paper presents a description of the physical processes in the storage cavern, the calculation methodology, and results of the model as applied to the conditions of the storage cavern designed for the Alabama Electric Cooperative 100 MW CAES plant.
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AbouRizk, Hala, SangHyun Lee, Ian R. Gellatly, and Aminah Robinson Fayek. "Understanding Withdrawal Behavior in the Construction Industry." In Construction Research Congress 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41109(373)81.

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Mathaiyan, Vijayakumar, Vijayanandh Raja, Abdul Saleem H, Tharikaa Ramesh, Srinivasamoorthy S, Arun Duraisamy, Dong Won Jung, Senthil Kumar Madasamy, and Raj K. Gnanasekaran. "Withdrawal: Parametric Study of Interaction Behavior of Laminar Jets." In AIAA Propulsion and Energy 2021 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2021. http://dx.doi.org/10.2514/6.2021-3553.c1.

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Pleshkova, N. L., T. V. Tatarenko, and D. V. Sevryugin. "Behavioral promlems and mother-child interaction in children with autism spectrum disorder." In INTERNATIONAL SCIENTIFIC AND PRACTICAL ONLINE CONFERENCE. Знание-М, 2020. http://dx.doi.org/10.38006/907345-50-8.2020.928.9.

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Results of the emotional and behavioral problems among children with autism spectrum disorder (ASD) in connection with mother-child interaction is presented. 29 children aged 52.9 ± 8.7 months old with ASD took part in the study. Mother-child interaction was studied by PCERA (Clark, 1985), the behavioral problems assessed by CBCL/1½-5 (Achenbach & Rescorla, 2000). Results showed that children demonstrate a lower level withdrawal, aggressive behavior, and attention if their mothers have a high level of positive involvement in the interaction. A high level of emotional reactivity, anxiety and oppositional behavior are observed if there were no reciprocity and mutuality in the dyadic interaction.
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Stuckert, Juri, Mirco Große, Leo Sepold, and Martin Steinbru¨ck. "Experimental Results of Reflood Bundle Test QUENCH-14 With M5® Cladding Tubes." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75266.

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The QUENCH-14 experiment investigated the effect of M5® cladding material on bundle oxidation and core reflood, in comparison with tests QUENCH-06 (ISP-45) that used standard Zircaloy-4 and QUENCH-12 that used VVER E110-claddings. The PWR bundle configuration of QUENCH-14 with a single unheated rod, 20 heated rods, and four corner rods was otherwise identical to QUENCH-06. The test was conducted in principle with the same protocol as QUENCH-06, so that the effects of the change of cladding material could be observed more easily. Pre-test calculations were performed by the Paul Scherrer Institute (Switzerland) using SCDAPSIM, SCDAP/RELAP5 and MELCOR codes. The experiment started with a pre-oxidation phase in steam, lasting 3100 s at 1500 K peak bundle temperature. After a further temperature increase to maximal bundle temperature of 2050 K the bundle was flooded with 41 g/s water from the bottom. The peak temperature of ∼2300 K was measured on the bundle shroud, shortly after quench initiation. The electrical power was reduced to 3.9 kW during the reflood phase to simulate effective decay heat levels. The complete bundle cooling was reached in 300 s after reflood initiation. The development of the oxide layer growth during the test was rather defined by measurements performed on the three Zircaloy-4 corner rods withdrawn successively from the bundle. The withdrawal of Zircaloy-4 and E110 corner rods after the test allowed a comparison of the different alloys in one test. One heated rod with M5 cladding was withdrawn after the test for a detailed analysis of oxidation degree and measurement of absorbed hydrogen. Post-test examinations showed neither breakaway cladding oxidation nor noticeable melt relocation between rods. Different from the QUENCH-14 (M5) findings, the QUENCH-12 test with the E110 claddings performed under similar conditions had resulted in intensive breakaway effect at cladding and shroud surfaces during the pre-oxidation phase and local melt relocation on reflood initiation. The hydrogen production in QUENCH-14 up to reflood was similar to QUENCH-06 and QUENCH-12 bundle tests. During reflood 5 g hydrogen were released which is similar to QUENCH-06 (4 g) but much less than during quench phase of QUENCH-12 (24 g). The reason for the different behaviour of the Zr1%Nb cladding alloys is the different oxide scale properties of both materials.
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Palenschat, Torsten, Peter Newton, Ricardo F. Martinez-Botas, Markus Müller, and Johannes Leweux. "3-D Computational Loss Analysis of an Asymmetric Volute Twin-Scroll Turbocharger." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-64190.

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In times of stringent emission standards for automotive and truck applications, exhaust gas recirculation (EGR) is used in IC engines to reduce NOx emissions by recirculating a portion of an engine’s exhaust gas. The amount of exhaust gas determined for EGR is withdrawn from the exhaust gas route and routed back into the combustion chamber. The recirculated exhaust gas acts as an inert gas and, when mixed with the pre-combustion mixture, helps to decrease the combustion temperature and thus NOx emissions. Designed for a diesel engine within a truck application, the turbine in this particular research project is fed by two cylinder groups, however, only the exhaust gas of one group is recirculated. The reduced mass flow in the small turbine scroll (EGR-scroll) through EGR withdrawal, along with the increased pressure required for EGR transport, leads to a massive reduction in the mass flow parameter of the EGR-scroll. The common turbocharger design process has been based on steady admission rather than unsteady admission given through the pulsating nature of multi-cylinder admission. This has lead to diverging results of turbochargers performing well on steady hot gas test rigs compared to performing badly in the final tests on the engine itself. In this paper however, unequal admission resulting from pulsating admission is taken into account. Based on unsteady admission, a methodology is proposed for steady computations with unequal admissions, and a thorough 3D CFD loss analysis is to be presented to understand the turbine behaviour, reveal the regions for improvements, and provide a framework for further development.
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Haber, Ludwig C., and Amie Humphrey-Facendola. "Tank Diaphragm Kinematic Behavior and Conditions for Safe Tank Withdrawal." In 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/icone20-power2012-55024.

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Power plants, including nuclear power plants regularly employ tanks whose contents need to be kept isolated from atmospheric conditions. One way to satisfy these requirements is to provide a liner for the tank which completely fits the interior shape of the tank but floats on top of the tank contents when the tank contains fluid. As the volume in the tank changes, the liner or diaphragm accommodates the changes in volume by sliding along the tank walls. To allow free movement of the diaphragm, management of the gas volume above the fluid and behind the diaphragm is of prime importance. The work described in this paper elaborates on the conditions required to prevent the tank diaphragm from becoming damaged. To develop potential failure modes, the kinematics of the diaphragm and the interaction with the gas volume between the diaphragm and the tank fluid are considered in detail. The developed model is applied to the case of a condensate storage tank at Comanche Peak Nuclear Power Plant (CPNPP). Two physical scale models of the tank were constructed and tested to validate the model and allow the safe operation principles to be quantified for use in the operation of the condensate storage tank at CPNPP. The work allowed CPNPP to design appropriate periodic checks and maintenance activities to ensure the diaphragm will not be damaged due to tank volume changes while still ensuring the required water chemistry criteria for the tank contents can be met.
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Tong, Xiaohong, Shanshan Ma, Chao Tang, Li Li, Dandan Liang, Rongjun Wang, Ling Chen, and Congying Song. "Depth image based on rehabilitation human behavior recognition (Withdrawal Notice)." In Conference on AI in Optics and Photonics, edited by Qionghua Wang, Haibo Luo, Huikai Xie, Chengkuo Lee, Liangcai Cao, Bin Yang, Jian Cheng, et al. SPIE, 2020. http://dx.doi.org/10.1117/12.2576129.

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Reports on the topic "Withdrawn behaviors"

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Bobashev, Georgiy, John Holloway, Eric Solano, and Boris Gutkin. A Control Theory Model of Smoking. RTI Press, June 2017. http://dx.doi.org/10.3768/rtipress.2017.op.0040.1706.

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We present a heuristic control theory model that describes smoking under restricted and unrestricted access to cigarettes. The model is based on the allostasis theory and uses a formal representation of a multiscale opponent process. The model simulates smoking behavior of an individual and produces both short-term (“loading up” after not smoking for a while) and long-term smoking patterns (e.g., gradual transition from a few cigarettes to one pack a day). By introducing a formal representation of withdrawal- and craving-like processes, the model produces gradual increases over time in withdrawal- and craving-like signals associated with abstinence and shows that after 3 months of abstinence, craving disappears. The model was programmed as a computer application allowing users to select simulation scenarios. The application links images of brain regions that are activated during the binge/intoxication, withdrawal, or craving with corresponding simulated states. The model was calibrated to represent smoking patterns described in peer-reviewed literature; however, it is generic enough to be adapted to other drugs, including cocaine and opioids. Although the model does not mechanistically describe specific neurobiological processes, it can be useful in prevention and treatment practices as an illustration of drug-using behaviors and expected dynamics of withdrawal and craving during abstinence.
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