289 research outputs found
Desenvolvimento de um modelo de selecionador de peças cerâmicas
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia de Produçã
Prolactin May Not Play a Role in Primary Antiphospholipid (Hughes') Syndrome
The relationship between prolactin (PRL) and the immune system has been demonstrated in the last two decades and has opened new windows in the field of immunoendocrinology. However, there are scarce reports about PRL in primary antiphospholipid syndrome (pAPS). The objective of this study was to evaluate PRL levels in patients with pAPS compared to healthy controls and to investigate their possible clinical associations. Fifty-five pAPS patients according to Sapporo criteria were age- and sex-matched with 41 healthy subjects. Individuals with secondary causes of hyperprolactinemia (HPRL) were excluded; demographic, biometric, and clinical data, PRL levels, antiphospholipid antibodies, inflammatory markers, and other routine laboratory findings were analyzed. PRL levels were similar between pAPS and healthy controls (8.94 ± 7.02 versus 8.71 ± 6.73 ng/mL, P = .876). Nine percent of the pAPS patients and 12.1% of the control subjects presented HPRL (P = .740). Comparison between the pAPS patients with hyper- and normoprolactinemia revealed no significant differences related to anthropometrics, clinical manifestations, medications, smoking, and antiphospholipid antibodies (P > .05). This study showed that HPRL does not seem to play a role in clinical manifestations of the pAPS, differently from other autoimmune rheumatic diseases
Umbandas matenses: espaços e lideranças umbandistas na Microrregião de Cataguases
Houses of Afro-Brazilian religions are present in ten of the fourteen municipalities that make up the Microregion of Cataguases, located in the Zona da Mata/MG. This photographic essay is the product of a decade of fieldwork, visits to terreiros and autonomous agents who voluntarily make their time and therapeutic practices available, allowing us to think about the conformation of an axé corridor.Casas de religiones afrobrasileñas están presentes en diez de los catorce municipios que componen la Microrregión de Cataguases, ubicada en la Zona da Mata/MG. Este ensayo fotográfico es producto de una década de trabajo de campo, visitas a terreiros y agentes autónomos que voluntariamente ponen a disposición su tiempo y prácticas terapéuticas, permitiéndonos pensar en la conformación de un corredor axé.
As casas de religiões de matrizes afro-brasileiras se fazem presentes em dez dos quatorze municípios que constituem a Microrregião de Cataguases, situada na Zona da Mata/MG. O presente ensaio fotográfico é produto de uma década de trabalho de campo, de visitas a terreiros e agentes autônomos que voluntariamente disponibilizam seu tempo e práticas terapêuticas, permitindo pensar na conformação de um corredor do axé
Deployment the MES (Manufacturing Execution System) aiming to improve competitive priorities of manufacturing
This work investigates the contributions of the MES – Manufacturing Execution System – for improving the competitive priorities of manufacturing. We present a theoretical framework on the information technologies (IT) and its business importance, the contributions of the organizational factors for the implementation of the MES, as well as the main concepts and the possible applications of this tool. The built theoretical framework was decisive to subsidize the research performance in the studied company. It was verified that the MES significantly contributed to the manufacturing relating to improvement cost, quality, flexibility, conformity and reliability. It was concluded that the MES improved the information quality generated from the plant floor, i.e., information that makes it fast, standardized, reliable and precise. When integrated to the Enterprise Resource Planning (ERP) of the company, the MES filled out a gap, offering information to other functional areas of the organization. The interviews, conducted in businesses departments in the company, showed the importance of the products tracking, and the MES implementation was decisive to improve that issue, concluding that the dimension is considered as a competitive priority of the manufacturing
Forma pulmonar primitiva da blastomicose
Forma pulmonar primitiva da blastomicos
Accuracy of clinical diagnosis for the identification of potentially malignant disorders and malignant lip lesions
The aim of this study was to assess the accuracy of clinical diagnosis for lip lesions based on sensitivity and specificity. The retrospective analysis focused on the detection of lesions caused by potentially malignant disorders (PMDs) and malignant lesions (n = 1195). All cases were classified as benign, PMD, and malignant lesions. Concordance between diagnoses based on clinical examination and those based on histopathological analysis was assessed, and accuracy for the identification of PMD and malignant lesions was calculated. Histopathological analysis revealed 44 lesion types; PMD and malignant lesions comprised 8.3% of all cases. Compared with histopathological analysis, clinical examination showed 97.4% accuracy for the identification of non-malignant and potentially malignant/malignant cases. Degrees of specific sensitivity ranged from 34% to 77% for different lesions, and were highest for autoimmune (77%) and reactive (72%) lesions. Positive and negative predictive values for the identification of PMD and malignant lesions were 81.9% and 98.9%, respectively. Clinical examination showed a high degree of accuracy for the detection of PMD and malignant lip lesions, indicating good reliability
The double white dwarf merger progenitors of SDSS J2211+1136 and ZTF J1901+1458
Double white dwarf (DWD) mergers are possibly the leading formation channel of massive, rapidly rotating, highfield magnetic white dwarfs (HFMWDs). However, a direct link connecting a DWD merger to any observed HFMWD is still missing. We here show that the HFMWDs SDSS J221141.80+113604.4 (hereafter J2211+1136) and ZTF J190132.9+145808.7 (hereafter J1901+1458) might be DWD merger products. J2211+1136 is a 1.27 Me white dwarf (WD) with a rotation period of 70.32 s and a surface magnetic field of 15 MG. J1901+1458 is a 1.327–1.365 Me WD with a rotation period of 416.20 s, and a surface magnetic field in the range 600–900 MG. With the assumption of single-star evolution and the currently measured WD masses and surface temperatures, the cooling ages of J2211+1136 and J1901+1458 are, respectively, 2.61–2.85 Gyr and 10–100 Myr. We hypothesize that these WDs are DWD merger products and compute the evolution of the postmerged configuration formed by a central WD surrounded by a disk. We show that the postmerger system evolves through three phases depending on whether accretion, mass ejection (propeller), or magnetic braking dominates the torque onto the central WD. We calculate the time the WD spends in each of these phases and obtain the accretion rate and disk mass for which the WD rotational age, i.e., the total time elapsed since the merger to the instant where the WD central remnant reaches the current measured rotation period, agrees with the estimated WD cooling age. We infer the mass values of the primary and secondary WD components of the DWD merger that lead to a postmerger evolution consistent with the observations
Are there geogenic relationships for Lithium between geology, geochemical anomalies and low levels of violence in the region of Guanambi, State of Bahia, NE Brazil? / Existem relações geográficas para o Lítio entre geologia, anomalias geoquímicas e baixos níveis de violência na região de Guanambi, Estado da Bahia, NE do Brasil?
Lithium has been applied for therapeutic purposes in the treatment of mental health disorders, such as bipolar affective disease, in the prevention of behaviour changes, and may be related, to some extent, to the reduction of suicide and violence. In Brazil, the main occurrences of lithium are found in the east/northeast region. In the Guanambi domains, in south-central Bahia, until recently, there were no references to lithium occurrences. The geology of the region is characterized by the monzo-syenitic batholith of Guanambi and its associated late intrusions (2.05Ga), where important manifestations of a pneumatolithic character are described. There are also evaporitic levels, interspersed with carbonate members of the São Francisco Supergroup (Bambuí Group - 650Ma). The Geological Survey of Brazil (CPRM) carried out an extensive geochemical survey, sampling and analysing water, sediments and soils. The geostatistical treatment and interpretation of these data revealed the existence of lithium anomalies in the Guanambi domains, in sites that spatially overlap the rocks of the Guanambi batholith and the carbonate rocks of the Bambuí Group. According to Atlas da Violência (2019), in Guanambi the homicide rate was 30.8 deaths per 100,000 inhabitants, that is, it is lower than the average homicide rate in Brazil (31.6 deaths per 100,000 inhabitants), or the average rate in Bahia (48.8 deaths per 100,000 inhabitants). The relationships between lithium and health can be addressed by medical geochemistry. This article is relevant to the community of geoscientists and health planners, whose objective is to investigate the hypothesis put forward of the effective relationship between geogenic lithium levels and the homicide rate in these sites in the State of Bahia
Amphibian Diversity: Where everything starts to flood, Cáceres Municipality, North Pantanal, Central-West Brazil
Faunal inventories contribute to our understanding of regional diversity, and are fundamental for policy and decision-making regarding the management and conservation of large natural areas. This study aimed to inventory and compile information on amphibian species occurring in the North Pantanal region, in the municipal limits of Cáceres, Mato Grosso, Brazil. We used three methods to inventory amphibian species: (1) fieldwork, (2) analysis of specimens deposited in scientific collections, and (3) literature reviews. We registered 49 amphibian species in Cáceres. Of them, 48 species belonged to the Anura order and were distributed across eight families and 20 genera, and one species belonged to the Gymnophiona order (Siphonops paulensis). The families Leptodactylidae (20 spp.) and Hylidae (17 spp.) were dominant in terms of richness, accounting for 75.5% of all species found in Cáceres. The remaining families had between four and one species each. The municipality is strongly influenced by non-forested formations (e.g., the Cerrado and Pantanal) and presents a high species richness for a non-forested location in Brazil. Our findings highlight Cáceres as one of the richest areas in amphibian species in the North Pantanal region, expanding our knowledge regarding frog diversity. This study provides a foundation for future conservation strategies and additional assessments of amphibian species in light of potential population declines and other emerging threats
- …