21 research outputs found
New species, additions and a key to the Brazilian species of the Geminata clade of Solanum L. (Solanaceae) in Brazil
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article.NHM Repositor
Identification and lectotypification of the Solanaceae from Vellozo's Flora Fluminensis
© International Association for Plant Taxonomy (IAPT) 2015. The attached document is the authors' final accepted version of the journal article. You are advised to consult the publisher's version if you wish to cite from it
The program for biodiversity research in Brazil: The role of regional networks for biodiversity knowledge, dissemination, and conservation
The Program for Biodiversity Research (PPBio) is an innovative program designed to integrate all biodiversity research stakeholders. Operating since 2004, it has installed long-term ecological research sites throughout Brazil and its logic has been applied in some other southern-hemisphere countries. The program supports all aspects of research necessary to understand biodiversity and the processes that affect it. There are presently 161 sampling sites (see some of them at Supplementary Appendix), most of which use a standardized methodology that allows comparisons across biomes and through time. To date, there are about 1200 publications associated with PPBio that cover topics ranging from natural history to genetics and species distributions. Most of the field data and metadata are available through PPBio web sites or DataONE. Metadata is available for researchers that intend to explore the different faces of Brazilian biodiversity spatio-temporal variation, as well as for managers intending to improve conservation strategies. The Program also fostered, directly and indirectly, local technical capacity building, and supported the training of hundreds of undergraduate and graduate students. The main challenge is maintaining the long-term funding necessary to understand biodiversity patterns and processes under pressure from global environmental changes
Worldwide comparison of survival from childhood leukaemia for 1995–2009, by subtype, age, and sex (CONCORD-2): a population-based study of individual data for 89 828 children from 198 registries in 53 countries
Background Global inequalities in access to health care are reflected in differences in cancer survival. The CONCORD programme was designed to assess worldwide differences and trends in population-based cancer survival. In this population-based study, we aimed to estimate survival inequalities globally for several subtypes of childhood leukaemia.
Methods Cancer registries participating in CONCORD were asked to submit tumour registrations for all children aged 0-14 years who were diagnosed with leukaemia between Jan 1, 1995, and Dec 31, 2009, and followed up until Dec 31, 2009. Haematological malignancies were defined by morphology codes in the International Classification of Diseases for Oncology, third revision. We excluded data from registries from which the data were judged to be less reliable, or included only lymphomas, and data from countries in which data for fewer than ten children were available for analysis. We also excluded records because of a missing date of birth, diagnosis, or last known vital status. We estimated 5-year net survival (ie, the probability of surviving at least 5 years after diagnosis, after controlling for deaths from other causes [background mortality]) for children by calendar period of diagnosis (1995-99, 2000-04, and 2005-09), sex, and age at diagnosis (< 1, 1-4, 5-9, and 10-14 years, inclusive) using appropriate life tables. We estimated age-standardised net survival for international comparison of survival trends for precursor-cell acute lymphoblastic leukaemia (ALL) and acute myeloid leukaemia (AML).
Findings We analysed data from 89 828 children from 198 registries in 53 countries. During 1995-99, 5-year agestandardised net survival for all lymphoid leukaemias combined ranged from 10.6% (95% CI 3.1-18.2) in the Chinese registries to 86.8% (81.6-92.0) in Austria. International differences in 5-year survival for childhood leukaemia were still large as recently as 2005-09, when age-standardised survival for lymphoid leukaemias ranged from 52.4% (95% CI 42.8-61.9) in Cali, Colombia, to 91.6% (89.5-93.6) in the German registries, and for AML ranged from 33.3% (18.9-47.7) in Bulgaria to 78.2% (72.0-84.3) in German registries. Survival from precursor-cell ALL was very close to that of all lymphoid leukaemias combined, with similar variation. In most countries, survival from AML improved more than survival from ALL between 2000-04 and 2005-09. Survival for each type of leukaemia varied markedly with age: survival was highest for children aged 1-4 and 5-9 years, and lowest for infants (younger than 1 year). There was no systematic difference in survival between boys and girls.
Interpretation Global inequalities in survival from childhood leukaemia have narrowed with time but remain very wide for both ALL and AML. These results provide useful information for health policy makers on the effectiveness of health-care systems and for cancer policy makers to reduce inequalities in childhood survival
Stochastic Mean-Field Dynamics and Applications to Life Sciences
Although we do not intend to give a general, formal definition, the stochastic mean-field dynamics we present in these notes can be conceived as the random evolution of a system comprised by N interacting components which is: (a) invariant in law for permutation of the components; (b) such that the contribution of each component to the evolution of any other is of order 1 1 N . The permutation invariance clearly does not allow any freedom in the choice of the geometry of the interaction; however, this is exactly the feature that makes these models analytically treatable, and therefore attractive for a wide scientific community
Cuidador familiar do idoso em cuidados paliativos: o processo de morrer no domicílio Family caregiver of elderly patients in palliative care: the process of dying at home
Este estudo teve como objetivos: identificar e analisar o significado do processo de morrer para cuidadores familiares de pacientes idosos em cuidados paliativos. Tratou-se de pesquisa qualitativa com utilização de entrevista. Os dados foram analisados por conteúdo. A presença de doenças crônicas que levam o idoso a necessitar de cuidados paliativos impõe sobre o cuidador familiar sentimentos complexos e ambivalentes. A proximidade e inevitabilidade da morte do idoso colaboram para intensificar esses sentimentos, mas possibilitam ao cuidador resignificar como vivencia essa experiência. Diante desta complexidade, torna-se evidente que a equipe paliativista precisa colaborar junto ao cuidador familiar, no sentido de tentar amenizar essa situação.<br>This study sought to identify and analyze the significance of the process of dying for family caregivers of elderly patients in palliative care. It involved qualitative research with the use of interviews. The data were scrutinized by content analysis. The presence of chronic diseases that lead the elderly patient to require palliative care imposes a series of complex and ambivalent feelings on the family caregiver. The proximity and inevitability of death of the elderly patient exacerbate these feelings, but also lead the caregiver to reconsider how to handle this experience. Given this complexity, it becomes clear that the palliative tem need to work with family caregivers, to try to alleviate this situation