Whirling disease dynamics: An analysis of intervention strategies

2014 ◽  
Vol 113 (4) ◽  
pp. 457-468 ◽  
Author(s):  
Kimbra G. Turner ◽  
Matthew J. Smith ◽  
Benjamin J. Ridenhour
2020 ◽  
Vol 5 (3) ◽  
pp. 176
Author(s):  
Rotich Kiplimo Titus ◽  
Lagat Robert Cheruiyot ◽  
Choge Paul Kipkurgat

1986 ◽  
Vol 43 (3) ◽  
pp. 521-526 ◽  
Author(s):  
Maria E. Markiw

In two trials, spores of the myxosporean Myxosoma cerebralis were added to aquaria containing specific-parasite-free tubificid oligochaetes held at 12.5 °C. After 104–113 d, the tubificids gave rise to and released actinosporean spores of triactinomyxon form, the alternate life stage of M. cerebralis and the initiator of salmonid whirling disease. Production of triactinomyxon spores peaked during days 154–190, and then declined almost as abruptly as it had risen. The triactinomyxon spores were released at trace levels for 9 mo after they first appeared. In a second trial, 26–50 million triactinomyxon spores were produced. The approximate yield from each tubificid was 730–3420 spores. The prevalence of experimentally infected tubificids was about 20%.


2018 ◽  
Vol 11 (02) ◽  
pp. 1850017 ◽  
Author(s):  
Peter Mpasho Mwamtobe ◽  
Simphiwe Mpumelelo Simelane ◽  
Shirley Abelman ◽  
Jean Michel Tchuenche

A model which incorporates some of the basic epidemiological features of the co-dynamics of malaria and tuberculosis (TB) is formulated and the effectiveness of current intervention strategies of these two diseases is analyzed. The malaria-only and TB-only models are considered first. Global stability disease-free steady states of the two sub-models does not hold due to the co-existence of stable disease-free with stable endemic equilibria, a phenomenon known as backward bifurcation. The dynamics of the dual malaria–TB model with intervention strategies are also analyzed. Numerical simulations of the malaria–TB model are carried out to determine whether the two diseases can co-exist. Lastly, sensitivity analysis on key parameters that drive the disease dynamics is performed in order to identify their relative importance to disease transmission.


2016 ◽  
Vol 10 (1) ◽  
pp. 222-249 ◽  
Author(s):  
Michael R. Kelly ◽  
Joseph H. Tien ◽  
Marisa C. Eisenberg ◽  
Suzanne Lenhart

Author(s):  
José G. Centeno

Abstract The steady increase in linguistic and cultural diversity in the country, including the number of bilingual speakers, has been predicted to continue. Minorities are expected to be the majority by 2042. Strokes, the third leading cause of death and the leading cause of long-term disability in the U.S., are quite prevalent in racial and ethnic minorities, so population estimates underscore the imperative need to develop valid clinical procedures to serve the predicted increase in linguistically and culturally diverse bilingual adults with aphasia in post-stroke rehabilitation. Bilingualism is a complex phenomenon that interconnects culture, cognition, and language; thus, as aphasia is a social phenomenon, treatment of bilingual aphasic persons would benefit from conceptual frameworks that exploit the culture-cognition-language interaction in ways that maximize both linguistic and communicative improvement leading to social re-adaptation. This paper discusses a multidisciplinary evidence-based approach to develop ecologically-valid treatment strategies for bilingual aphasic individuals. Content aims to spark practitioners' interest to explore conceptually broad intervention strategies beyond strictly linguistic domains that would facilitate linguistic gains, communicative interactions, and social functioning. This paper largely emphasizes Spanish-English individuals in the United States. Practitioners, however, are advised to adapt the proposed principles to the unique backgrounds of other bilingual aphasic clients.


Author(s):  
Elena Dukhovny ◽  
E. Betsy Kelly

According to the 2010 U.S. Census, over 20% of Americans speak a language other than English in the home, with Spanish, Chinese, and French being the languages most commonly spoken, aside from English. However, few augmentative and alternative communication (AAC) systems offer multilingual support for individuals with limited functional speech. There has been much discussion in the AAC community about best practices in AAC system design and intervention strategies, but limited resources exist to help us provide robust, flexible systems for users who speak languages other than English. We must provide services that take into consideration the unique needs of culturally and linguistically diverse users of AAC and help them reach their full communication potential. This article outlines basic guidelines for best practices in AAC design and selection, and presents practical applications of these best practices to multilingual/multicultural clients.


Crisis ◽  
2015 ◽  
Vol 36 (6) ◽  
pp. 459-463
Author(s):  
Kate Monaghan ◽  
Martin Harris

Abstract. Background: Suicide is a pervasive and complex issue that can challenge counselors through the course of their careers. Research and practice focus heavily on crisis management and imminent risk rather than early intervention strategies. Early intervention strategies can assist counselors working with clients who have suicidal ideation, but are not at imminent risk, or with clients whose risk factors identify them as having a stronger trajectory for suicidal ideation. Aims: This systematic literature review examines the current literature on working with clients with suicidal ideation who are not at imminent risk, to ascertain the types of information and strategies available to counselors working with this client group. Method: An initial 622 articles were identified for analysis and from these 24 were included in the final review, which was synthesized using a narrative approach. Results: Results indicate that research into early intervention strategies is extremely limited. Conclusion: It was possible to describe emergent themes and practice guidelines to assist counselors working with clients with suicidal ideation but not at imminent risk.


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