106 research outputs found
Comparative Skull Morphology of Uropeltid Snakes (Alethinophidia: Uropeltidae) with Special Reference to Disarticulated Elements and Variation
Uropeltids form a diverse clade of highly derived, fossorial snakes that, because of their phylogenetic position among other alethinophidian lineages, may play a key role in understanding the early evolution of cranial morphology in snakes. We include detailed osteological descriptions of crania and mandibles for eight uropeltid species from three nominal genera (Uropeltis, Rhinophis, and Brachyophidium) and emphasize disarticulated elements and the impact of intraspecific variation on previously proposed morphological characters used for phylogenetic analysis. Preliminary analysis of phylogenetic relationships strongly supports a clade composed exclusively of species of Plectrurus, Uropeltis, and Rhinophis. However, monophyly of each of those genera and Melanophidium is not upheld. There is moderate support that Sri Lankan species (e.g., Rhinophis and Uropeltis melanogaster) are monophyletic with respect to Indian uropeltids. Previously proposed characters that are phylogenetically informative include the shape of the nasals, length of the occipital condyle, level of development of the posteroventral process of the dentary, and participation of the parietal in the optic foramen. Additionally, thirty new features that may be systematically informative are identified and described, but were not verified for their utility. Such verification must await availability of additional disarticulated cranial material from a larger sample of taxa. All characters require further testing through increased focus on sources and patterns of intraspecific variation, inclusion of broader taxonomic samples in comparative studies, and exploration of skeletal development, sexual dimorphism, and biogeographic patterns. Additionally, trends in the relative enlargement of the sensory capsules, reduction in cranial ossification and dentition, fusion of elements, and the appearance of novel morphological conditions, such as the structure and location of the suspensorium, may be related to fossoriality and miniaturization in some uropeltid taxa, and may complicate analysis of relationships within Uropeltidae and among alethinophidian snakes
Internet‑delivered cognitive behavioral therapy for tinnitus compared to Internet‑delivered mindfulness for tinnitus : a study protocol of a randomized controlled trial
AVAILABILITY OF DATA AND MATERIALS : After the publication of trial results, a de-identified dataset will be available from the PI upon a reasonable request.BACKGROUND : Tinnitus affects around 15% of the population and can be a debilitating condition for a sizeable part of them. However, effective evidence-based treatments are scarce. One recommended treatment for tinnitus is cognitive behavioral therapy which has been found to be effective when delivered online. However, more treatments including mindfulness-based interventions have been studied recently in an attempt to facilitate the availability of effective treatments. There are promising findings showing great effects in reducing tinnitus-induced distress and some evidence about the efficacy of such intervention delivered online. However, there is a lack of evidence on how these two treatments compare against one another. Therefore, the aim of this study will be to compare Internet-delivered cognitive behavioral therapy for tinnitus against an Internet-delivered mindfulness-based tinnitus stress reduction intervention in a three-armed randomized controlled trial with a waiting list control condition. METHODS : This study will be a randomized controlled trial seeking to recruit Lithuanian-speaking individuals suffering from chronic tinnitus. The self-report measure Tinnitus Handicap Inventory will be used. Self-referred participants will be randomized into one of three study arms: Internet-delivered cognitive behavioral therapy, Internet-delivered mindfulness- based tinnitus stress reduction intervention, or a waiting-list control group. Post-treatment measures will be taken at the end of the 8-week-long intervention (or waiting). Long-term efficacy will be measured 3 and 12 months post-treatment. DISCUSSION : Internet-delivered interventions offer a range of benefits for delivering evidence-based treatments. This is the first randomized controlled trial to directly compare Internet-delivered CBT and MBTSR for tinnitus in a noninferiority trial. TRIAL REGISTRATION : ClinicalTrials.gov NCT05705323. Registered on January 30, 2023.The Research Council of Lithuania (LMTLT).https://trialsjournal.biomedcentral.comam2023Speech-Language Pathology and AudiologySDG-03:Good heatlh and well-bein
Internet-delivered cognitive behavioral therapy for tinnitus compared to Internet-delivered mindfulness for tinnitus: a study protocol of a randomized controlled trial
Background:
Tinnitus affects around 15% of the population and can be a debilitating condition for a sizeable part of them. However, effective evidence-based treatments are scarce. One recommended treatment for tinnitus is cognitive behavioral therapy which has been found to be effective when delivered online. However, more treatments including mindfulness-based interventions have been studied recently in an attempt to facilitate the availability of effective treatments. There are promising findings showing great effects in reducing tinnitus-induced distress and some evidence about the efficacy of such intervention delivered online. However, there is a lack of evidence on how these two treatments compare against one another. Therefore, the aim of this study will be to compare Internet-delivered cognitive behavioral therapy for tinnitus against an Internet-delivered mindfulness-based tinnitus stress reduction intervention in a three-armed randomized controlled trial with a waiting list control condition.
Methods:
This study will be a randomized controlled trial seeking to recruit Lithuanian-speaking individuals suffering from chronic tinnitus. The self-report measure Tinnitus Handicap Inventory will be used. Self-referred participants will be randomized into one of three study arms: Internet-delivered cognitive behavioral therapy, Internet-delivered mindfulness-based tinnitus stress reduction intervention, or a waiting-list control group. Post-treatment measures will be taken at the end of the 8-week-long intervention (or waiting). Long-term efficacy will be measured 3 and 12 months post-treatment.
Discussion: Internet-delivered interventions offer a range of benefits for delivering evidence-based treatments. This is the first randomized controlled trial to directly compare Internet-delivered CBT and MBTSR for tinnitus in a non-inferiority trial
The Airborne Metagenome in an Indoor Urban Environment
The indoor atmosphere is an ecological unit that impacts on public health. To investigate the composition of organisms in this space, we applied culture-independent approaches to microbes harvested from the air of two densely populated urban buildings, from which we analyzed 80 megabases genomic DNA sequence and 6000 16S rDNA clones. The air microbiota is primarily bacteria, including potential opportunistic pathogens commonly isolated from human-inhabited environments such as hospitals, but none of the data contain matches to virulent pathogens or bioterror agents. Comparison of air samples with each other and nearby environments suggested that the indoor air microbes are not random transients from surrounding outdoor environments, but rather originate from indoor niches. Sequence annotation by gene function revealed specific adaptive capabilities enriched in the air environment, including genes potentially involved in resistance to desiccation and oxidative damage. This baseline index of air microbiota will be valuable for improving designs of surveillance for natural or man-made release of virulent pathogens
To Participate or Not to Participate in Education Research: A View From the Teacher’s Perspective
This dissertation was designed to identify factors that might explain teacher resistance versus teacher support for participation in education research. To that end, predictor variables suggested by both diffusion of innovations theory, as well as personality trait theories were examined as unique predictors of variability in attitudes toward adoption of participation in the research process. Furthermore, “exposure to research” was examined as another possible variable that may be uniquely associated with willingness to participate in research, beyond the other theoretically motivated variables. The researcher developed a survey instrument featuring four research vignettes that increased in demands for teacher participation. Each vignette was followed by questions directly related to factors inherent to each innovation (diffusion of innovations) and questions related to personality trait theories, explicitly “teacher self-efficacy” and “openness to new experiences”. The questions were asked using scales based on the works of Albert Bandura, specifically designed to measure rate of confidence and rate of agreement. Following the research vignettes, a series of demographic questions were asked as well as whether the participant had previously participated in research either at the professional or collegiate level. The survey instrument was completed anonymously by educators online, using the SurveyMonkey Audiences platform as the host site. An analysis of the data revealed that educators who displayed a high level of teacher self-efficacy were more willing to adopt participation in research studies, regardless of the level of required tasks for research participation. This variable uniquely predicted willingness to participate in research over and above all other variables. Previous exposure to research did not produce a significant effect and, in turn, was not a predictor for willingness to participate in research given any of the research vignettes. The diffusion of innovations variables produced varied results, depending on research vignette and number of required tasks. All five of the diffusion of innovations variables yielded a significant result at least one time in any given scenario
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Post-SARS-CoV-2 Atypical Inflammatory Syndrome in a Toddler with X-Linked Inhibitor of Apoptosis Deficiency After Stem Cell Transplant
A 10-month-old boy was diagnosed with X-linked lymphoproliferative syndrome type 2 due to X-linked inhibitor of apoptosis deficiency after presenting with failure to thrive and refractory inflammatory bowel disease. He underwent a matched unrelated donor stem cell transplant with reduced intensity conditioning at 16 months. At 27 months, he presented with an atypical inflammatory syndrome in the setting of recent COVID-19 infection, Epstein-Barr viremia, and low chimerism (7.3%). He recovered after treatment with intravenous immunoglobulin and steroids
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