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Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. A sociologia da ciência e da tecnologia no Brasil: uma análise a partir da produção em periódicos A1 entre 2010 e 2018
Resumo Este trabalho analisa a produção em sociologia da ciência e da tecnologia publicada no Brasil entre 2010 e 2018 em periódicos nacionais Qualis A1 em sociologia. Foram examinados dados sobre o volume, tipo e distribuição das publicações, além das temáticas, objetos empíricos e conceitos mais frequentes. Analisou-se ainda o conteúdo das cinc
Sociedade e Estado. Publicado em: 2022
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2. Sluggish cognitive tempo is associated with autistic traits and anxiety disorder symptoms in children with attention-deficit/hyperactivity disorder
Objective: To investigate the association of sluggish cognitive tempo (SCT) with autistic traits (ATs) and anxiety disorder symptoms among children with attention-deficit/hyperactivity disorder (ADHD). Methods: A total of 195 children with a DSM-5 diagnosis of ADHD were included. The Barkley Sluggish Cognitive Tempo Scale (BSCTS) was used to measure SCT sy
Braz. J. Psychiatry. Publicado em: 2021-04
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3. Mapping QTLs for traits associated with biological nitrogen fixation (BNF) in soybeans / Mapeamento de QTLs para caracteres relacionados com a fixação biológica de nitrogênio (FBN) em soja
Soybeans [Glycine max (L.) Merrill] is a crop with high protein content (about 40%) in the seeds. As a result, the crop demands high nitrogen (N) inputs, which can be supplied by the process of biological nitrogen fixation (BNF), through the symbiosis with bacteria of the genus Bradyrhizobium. In Brazil the BNF allows to fulfill all the demand for N; therefo
Publicado em: 2010
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4. Previsão das propriedades físicas do papel kraft por espectroscopia no infravermelho próximo (NIR) e regressão por mínimos quadrados parciais (PLS)
The main objective of the present work is represented by the characterization of the physical properties of industrial kraft paper (i.e. transversal and longitudinal tear resistance, transversal traction resistance, bursting or crack resistance, longitudinal and transversal compression resistance (SCT (Compressive Strength Tester) and compression resistance
Química Nova. Publicado em: 2009
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5. Identification of a new calcitonin gene in the salmon Oncorhynchus gorbuscha.
Three isoforms of calcitonin (CT) exist in salmonids. Isohormones I and II are expressed in the pink salmon Oncorhynchus gorbuscha. We report here the existence in this species of a CT gene and of its transcripts, which encode for a fourth isohormone, the salmon CT (sCT) IV. This new CT gene was identified by PCR from genomic DNA and by sequencing the amplif
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6. SCT1 mutants suppress the camptothecin sensitivity of yeast cells expressing wild-type DNA topoisomerase I.
Camptothecin is a potent antineoplastic agent that interferes with the action of eukaryotic DNA topoisomerase I; the covalent enzyme-DNA intermediate is reversibly stabilized, leading to G2 arrest and cell death. We used a genetic screen to identify cellular factors, other than DNA topoisomerase I, that participate in the process of camptothecin-induced cell
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7. Tissue-type plasminogen activator is a target of the tumor suppressor gene maspin
The maspin protein has tumor suppressor activity in breast and prostate cancers. It inhibits cell motility and invasion in vitro and tumor growth and metastasis in nude mice. Maspin is structurally a member of the serpin (serine protease inhibitors) superfamily but deviates somewhat from classical serpins. We find that single-chain tissue plasminogen activat
The National Academy of Sciences.
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8. Down-regulation of rat kidney calcitonin receptors by salmon calcitonin infusion evidenced by autoradiography.
In treating age-related osteoporosis and Paget disease of bone, it is of major importance to avoid an escape phenomenon that would reduce effectiveness of the treatment. The factors involved in the loss of therapeutic efficacy with administration of large pharmacological doses of the hormone require special consideration. Down-regulation of the hormone recep
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9. An intracellular study of spinocervical tract cell responses to natural stimuli and single hair afferent fibres in cats.
1. Intracellular recordings were made from spinocervical tract (s.c.t.) neurones in cats anaesthetized with chloralose and paralysed with gallamine triethiodide. 2. In one series of experiments the cells' receptive fields were examined with the use of natural stimuli. Hair movement within the impulse firing zone of the cell evoked excitatory post-synaptic po
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10. The European Community Study Group on diagnostic criteria for Sjögren's syndrome. Sensitivity and specificity of tests for ocular and oral involvement in Sjögren's syndrome.
AIM--To establish a definitive set of diagnostic criteria in a multicentre European study a selected number of oral and ocular tests were performed on a large number of patients with Sjögrens Syndrome (SS) and controls. The diagnostic accuracy of each test for patients with primary and secondary SS and for controls at different ages, was studied. METHODS--E
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11. Adenylate cyclase responsiveness to hormones in various portions of the human nephron.
The action sites for parathyroid hormone (PTH), salmon calcitonin (SCT), and arginine-vasopressin (AVP) were investigated along the human nephron by measuring adenylate cyclase activity, using a single tubule in vitro microassay. Well-localized segments of tubule were isolated by microdissection from five human kidneys unsuitable for transplantation. PTH (10
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12. Reciprocal Expression of Two Candidate Di-Iron Enzymes Affecting Photosystem I and Light-Harvesting Complex Accumulation
Crd1 (Copper response defect 1), which is required for the maintenance of photosystem I and its associated light-harvesting complexes in copper-deficient (−Cu) and oxygen-deficient (−O2) Chlamydomonas reinhardtii cells, is localized to the thylakoid membrane. A related protein, Cth1 (Copper target homolog 1), is shown to have a similar but not identical
American Society of Plant Biologists.