Sequential orgaqisation of social behaviour in captive adult and juvenile Macropus rufus (Marsupialia: Macropodidae).

1989 ◽  
Vol 12 (1) ◽  
pp. 5
Author(s):  
P. Wilhelm ◽  
U. Ganslosser

The behavioural repertoire of Macropus rufus in captivity is described in comparison with data from literature. Most behavioural elements observed do not differ from those of free-ranging populations. Some new elements of agonistic and sexual behaviour are described. The sequential organisation of adult social behaviour allows a distinction between the functional categories of agonistic, friendly and sexual behaviour as well as a series of transitional elements. In sexual behaviour, low-intensity sexual checking can be distinguished from high-intensity courting and mating behaviour. In agonistic contexts a distinction between elements of ritualised and unritualised fighting is possible on the basis of sequences, with fixed sequences of behaviour patterns in ritualised fighting. Young M. rufus show nearly all behaviour patterns of adults, though frequently out of context. Their behavioural repertoire is not organised into different functional categories. Playfighting as well as running-play are not restricted to the mother-young dyad.

2016 ◽  
Vol 25 (4) ◽  
pp. 523-526 ◽  
Author(s):  
Nataly Díaz-Ayala ◽  
Ezequiel Hidalgo-Hermoso ◽  
Constanza Cabello-Araya ◽  
Francisco Carvallo-Chaigneau

Abstract Toxoplasmosis is an infectious, zoonotic and parasitic disease, caused by Toxoplasma gondii. In this manucript, two cases of infection with T. gondii in captive animals from a zoological park in the central region of Chile are described. One case was a red kangaroo (Macropus rufus), which is highly susceptible to the infection, and the other was a Patagonian mara (Dolichotis patagonum), a rodent in which there is no previous report of the infection. Both animals had myocarditis, with the presence of intralesional tachizoites and cysts suggestive of infection with T. gondii. This infection was confirmed by immunohistochemistry in both animals. The origin of the infection is unknown, but it is likely that free ranging domestic felines were associated with the dissemination of the parasites. This highlights the importance of controlling the domestic animal populations in zoological parks. To the best of our knowledge, this is the first time that T. gondii infection is described in a Patagonian mara, adding a new host for this infectious agent.


Behaviour ◽  
2011 ◽  
Vol 148 (9-10) ◽  
pp. 1137-1155 ◽  
Author(s):  
Tara M. Mandalaywala ◽  
James P. Higham ◽  
Michael Heistermann ◽  
Dario Maestripieri

AbstractIt has long been established that one of the driving factors underlying changes in female socio-sexual behaviour across the ovarian cycle is variation in the hormones oestrogen and progesterone. However, the effect that the social environment, and specifically con-specific bystanders, exerts on social relationships is far less clear. Here we explore the modulating effects of infant bystanders on relationships between female ovarian cycling and socio-sexual behaviour in free-ranging rhesus macaques during the 6-month mating season on Cayo Santiago, Puerto Rico. We used non-invasive hormone assessment to time ovulation in females, and analysed measures of social and sexual behaviour with respect to a 2-day ovulation window. Rates of copulation and ejaculation varied relative to ovulation, with female–male sexual interactions peaking around ovulation. Moreover, the presence of an infant bystander affected these rates, with fewer sexual interactions occurring for a given day with respect to ovulation when infant bystanders were more frequently in close proximity to the female. Other bystander categories (adult females, adult males, and adult female & infant groupings) did not have the same effect on female mating behaviour. These results suggest that mother–offspring conflict might manifest not only as direct interactions between mother and infant (e.g., weaning or carrying conflict), but also through indirect interactions.


1997 ◽  
Vol 77 (04) ◽  
pp. 685-689 ◽  
Author(s):  
Paul A Kyrle ◽  
Johannes Brockmeier ◽  
Ansgar Weltermann ◽  
Sabine Eichinger ◽  
Wolfgang Speiser ◽  
...  

SummaryCoumarin-induced skin necrosis is believed to be due to a transient hypercoagulable state resulting from a more rapid decline of the protein C activity relative to that of coagulation factors (F) II, IX and X during initiation of oral anticoagulant therapy. We studied hemostatic system activation during early oral anticoagulant treatment with a technique that investigates coagulation activation in the microcirculation.We determined in 10 healthy volunteers the concentrations of prothrombin fragment F1+2 (f1.2) and thrombin-antithrombin complex (TAT) in blood emerging from an injury of the microvasculature (bleeding time incision) before and after initiation of both high-inten- sity and low-intensity coumarin therapy. In addition, f1.2, TAT, activated F VII (F Vila) and the activities of FII, F VII, F X and protein C were measured in venous blood.A rapid decline of F VII and protein C was observed in venous blood with activities at 24 h of 7 ± 1% and 43 ± 2%, respectively, during the high-intensity regimen. A 20 to 30% reduction of f1.2 and TAT was seen in venous blood at 72 h with no major difference between the high- and the low-intensity regimen. F Vila levels were substantially affected by anticoagulation with a >90% reduction at 48 h during the high-intensity regimen. Following high-intensity coumarin, a >50% decrease in the fl.2 and TAT levels was found in shed blood at 48 h suggesting substantial inhibition of thrombin generation during early oral anticoagulation. An increase in the f1.2 and TAT levels was seen neither in shed blood nor in venous blood.Our data do not support the concept of a transient imbalance between generation and inhibition of thrombin as the underlying pathomechanism of coumarin-induced skin nekrosis.


Author(s):  
Goncalo V. Mendonca ◽  
Carolina Vila-Chã ◽  
Carolina Teodósio ◽  
André D. Goncalves ◽  
Sandro R. Freitas ◽  
...  

2020 ◽  
Vol 47 (1) ◽  
Author(s):  
Rabab S. Zaghlol ◽  
Sahar S. Khalil ◽  
Ahmed M. Attia ◽  
Ghada A. Dawa

Abstract Background Total knee replacement operation (TKR) is the treatment of choice in severe knee osteoarthritis (OA). Rehabilitation post-TKR is still not well studied. The aim of this study was to compare between the high-intensity (HI) rehabilitation program and the low-intensity (LI) rehabilitation program following TKR. Results At 1 month following the TKR operations, significant improvements were found in the first group compared to the second group in all the measured parameters except for the knee range of motion (ROM). At 3 and 12 months follow-up periods, there were statistically significant differences between both groups in all the evaluated parameters except for the numeric pain rating scale and the knee ROM. Conclusions Both high-intensity and low-intensity rehabilitation programs are effective; however, HI program had superior functional gain and patient-reported outcomes compared to the LI program. Moreover, HI group has a long-term functional gain.


2020 ◽  
pp. 108201322097379
Author(s):  
Jahir Antonio Barajas-Ramírez ◽  
Ana Luisa Gutiérrez-Salomón ◽  
Sonia Guadalupe Sáyago-Ayerdi

The calyces of roselle ( Hibiscus sabdariffa L.) are used to make a refreshing drink with high content of anthocyanins and other phenolic compounds, although the process for obtaining the beverage is not standardized. In this research it was determined physicochemical characteristics, total soluble polyphenols content, antioxidant activity and acceptance for beverages prepared by decoction at four concentrations of calyces in water (1.0, 2.5, 5.0 and 10.0%) and two concentrations of sucrose (11 and 16%). Color parameters in beverages permitted to describe them as red, which turned darker as the content of hibiscus increased. Total soluble polyphenols content and antioxidant activity were directly correlated with content of calyces in beverages and inversely correlated with pH, which means that beverages with higher content of calyces could be perceived as more acidic and more intense in characteristics associated with hibiscus presence, such as acid, astringent and the presence of intense dark red color, although the higher concentration of sucrose might have contributed to mask slightly the sourness and astringency. Acceptance for hibiscus beverages allowed to observe two segments of consumers, high-intensity and low-intensity likers but both confluence in overall liking values for beverages prepared with 2.5% calyces and 16% sucrose.


2014 ◽  
Vol 42 (6) ◽  
pp. 760-764 ◽  
Author(s):  
Katharine A. Rimes ◽  
Janet Wingrove ◽  
Rona Moss-Morris ◽  
Trudie Chalder

Background: Cognitive behavioural interventions are effective in the treatment of chronic fatigue, chronic fatigue syndrome (sometimes known as ME or CFS/ME) and irritable bowel syndrome (IBS). Such interventions are increasingly being provided not only in specialist settings but in primary care settings such as Improving Access to Psychological Therapies (IAPT) services. There are no existing competences for the delivery of “low-intensity” or “high-intensity” cognitive behavioural interventions for these conditions. Aims: To develop “high-intensity” and “low-intensity” competences for cognitive behavioural interventions for chronic fatigue, CFS/ME and IBS. Method: The initial draft drew on a variety of sources including treatment manuals and other information from randomized controlled trials. Therapists with experience in providing cognitive behavioural interventions for CF, CFS/ME and IBS in research and clinical settings were consulted on the initial draft competences and their suggestions for minor amendments were incorporated into the final versions. Results: Feedback from experienced therapists was positive. Therapists providing low intensity interventions reported that the competences were also helpful in highlighting training needs. Conclusions: These sets of competences should facilitate the training and supervision of therapists providing cognitive behavioural interventions for chronic fatigue, CFS/ME and IBS. The competences are available online (see table of contents for this issue: http://journals.cambridge.org/jid_BCP) or on request from the first author.


2014 ◽  
Vol 42 (6) ◽  
pp. 747-759 ◽  
Author(s):  
Stella W. Y. Chan ◽  
Malcolm Adams

Background: The IAPT services provide high and low intensity psychological treatments for adults suffering from depression and anxiety disorders using a stepped care model. The latest national evaluation study reported an average recovery rate of 42%. However, this figure varied widely between services, with better outcomes associated with higher “step-up” rates between low and high intensity treatments. Aims: This study aimed to compare the two intensity groups in an IAPT service in Suffolk. Method: This study adopted a between groups design. A sample of 100 service users was randomly selected from the data collected from an IAPT service in Suffolk between May 2008 and February 2011. The treatment outcomes, drop-out rate, and other characteristics were compared between those who received high and low intensity treatments. Results: The high intensity group received, on average, more sessions and contact time. They received more CBT sessions and less guided self-help. There were no group differences in terms of the drop-out and appointment cancellation rates. Analyses on clinical outcomes suggested no group difference but demonstrated an overall recovery rate of 52.6% and significant reduction in both depression and anxiety symptoms. Conclusions: Despite methodological limitations, this study concludes that the service as a whole achieved above-average clinical outcomes. Further research building upon the current study in unpacking the relative strengths and weaknesses for the high and low intensity treatments would be beneficial for service delivery.


2015 ◽  
Vol 43 (3) ◽  
pp. 374-380 ◽  
Author(s):  
Amanda Branson ◽  
Roz Shafran

Background:Evidence exists for a relationship between individual characteristics and both job and training performance; however relationships may not be generalizable. Little is known about the impact of therapist characteristics on performance in postgraduate therapist training programmes.Aims:The aim of this study was to investigate associations between the grades of trainee Low-Intensity and High-Intensity cognitive behavioural therapists and individual characteristics.Method:Trainee Low-Intensity (n= 81) and High-Intensity (n= 59) therapists completed measures of personality and cognitive ability; demographic and course grade data for participants were collected.Results:Degree classification emerged as the only variable to be significantly associated with performance across assessments and courses. Higher undergraduate degree classifications were associated with superior academic and clinical performance. Agreeableness was the only dimension of personality to be associated (positively) with clinical skill. Age was weakly and negatively associated with performance.Conclusions:Relationships between individual characteristics and training outcomes are complex and may be context specific. These results could have important implications for the selection and development of therapists for Low or High-Intensity cognitive behavioural therapy (CBT) training.


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