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Malaria, a mosquito-borne infectious disease affecting humans and other animals, is widespread in tropical and subtropical regions. Microscopy is the most common method for diagnosing the malaria parasite from stained blood smear samples. However, this technique is time consuming and must be performed by a well-trained professional, yet it remains prone to errors. Distinguishing the multiple growth stages of parasites remains an especially challenging task.
In this article, we develop a novel deep learning approach for the recognition of malaria parasites of various stages in blood smear images using a deep transfer graph convolutional network (DTGCN). To our knowledge, this is the first application of graph convolutional network (GCN) on multi-stage malaria parasite recognition in such images. The proposed DTGCN model is based on unsupervised learning by transferring knowledge learnt from source images that contain the discriminative morphology characteristics of multi-stage malaria parasites. This transferred information guarantees the effectiveness of the target parasite recognition. This approach first learns the identical representations from the source to establish topological correlations between source class groups and the unlabelled target samples. At this stage, the GCN is implemented to extract graph feature representations for multi-stage malaria parasite recognition. The proposed method showed higher accuracy and effectiveness in publicly available microscopic images of multi-stage malaria parasites compared to a wide range of state-of-the-art approaches. Furthermore, this method is also evaluated on a large-scale dataset of unseen malaria parasites and the Babesia dataset.
Code and dataset are available at https//github.com/senli2018/DTGCN_2021 under a MIT license.
Code and dataset are available at https//github.com/senli2018/DTGCN_2021 under a MIT license.The need to improve the primary mental healthcare system in India has gained increasing public health attention. Concomitantly, efforts to frame and develop appropriate public mental health care through legislation and related strategies and programmes have been undertaken. Because older people in India are particularly prone to mental health problems, this study explores the inclusiveness of Indian public policies in addressing the primary mental health care needs of older people from a cross-policy perspective. The basis of this thematic document analysis is 41 key national strategic documents (1999-2018) from different thematically grouped policy fields. In the context of population ageing, socio-economic challenges for older people and changing family norms, the policies delineate a pronounced interest in old-age-inclusive primary mental health care, whereas international policies are regarded as important reference points. While some of the policies address older persons as a vulnerable group in general, others delineate a more differentiated picture of the older population. Moreover, as new rights with implications for old-age mental health care, including community-based access to mental health care, have emerged, an integrated old-age mental healthcare policy spanning across sectors remains absent. Although old-age-inclusive primary mental health care is an emerging trend in India, its development as a cross-cutting policy issue remains in its infancy. LBH589 Accordingly, unambiguous integrated policy approaches are needed to address the complex mental healthcare needs of older persons, and further research should be undertaken to focus on mental healthcare strategies and approaches at the primary care level.Lesbian, gay, and bisexual-identified (LGB) people experience worse mental and physical health than their straight-identified counterparts. Given remarkable social and legal changes regarding LGB status in recent decades, we theorize that this profound health disadvantage may be changing across cohorts. Using data from the 2013-2018 National Health and Interview Surveys, we analyze five mental and physical health outcomes-psychological distress, depression, anxiety, self-rated physical health, and activity limitation-across three birth cohorts colloquially known as (1) Millennials, (2) Generation Xers, and (3) Baby Boomers and pre-Boomers. We find no evidence of reduced health disparities by sexual orientation across cohorts. Instead, relative to straight-identified respondents, the health disadvantages of gay, lesbian, and-most strikingly-bisexual-identified people have increased across cohorts. Findings highlight the importance of identifying the causes of increased health disparities as well as designing and implementing moredirect public policies and programs to eliminate health disparities among more recent LGB cohorts.The large spectrum of hearing sensitivity observed in primates results from the impact of environmental and behavioral pressures to optimize sound perception and localization. Although evidence of positive selection in auditory genes has been detected in mammals including in Hominoids, selection has never been investigated in other primates. We analyzed 123 genes highly expressed in the inner ear of 27 primate species and tested to what extent positive selection may have shaped these genes in the order Primates tree. We combined both site and branch-site tests to obtain a comprehensive picture of the positively selected genes (PSGs) involved in hearing sensitivity, and drew a detailed description of the most affected branches in the tree. We chose a conservative approach, and thus focused on confounding factors potentially affecting PSG signals (alignment, GC-biased gene conversion, duplications, heterogeneous sequencing qualities). Using site tests, we showed that around 12% of these genes are PSGs, an α selection value consistent with average human genome estimates (10-15%). Using branch-site tests, we showed that the primate tree is heterogeneously affected by positive selection, with the black snub-nosed monkey, the bushbaby, and the orangutan, being the most impacted branches. A large proportion of these genes is inclined to shape hair cells and stereocilia, which are involved in the mechanotransduction process, known to influence frequency perception. Adaptive selection, and more specifically recurrent adaptive evolution, could have acted in parallel on a set of genes (ADGRVl, USH2A, PCDH15, PTPRQ and ATP8A2) involved in stereocilia growth and the whole complex of bundle links connecting them, in species across different habitats, including high altitude and nocturnal environments.
Read More: https://www.selleckchem.com/products/LBH-589.html
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