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Relação entre o equilíbrio e o medo de cair em idosos

O equilíbrio corporal constitui uma das funções mais importantes do organismo, estando por isso diretamente associado à qualidade de vida do indivíduo. Algumas das alterações decorrentes do processo de envelhecimento, nomeadamente a nível músculo-esquelético, neuromuscular e sensorial, influenciam a mobilidade funcional e a capacidade para manter a estabilidade em indivíduos idosos1. As manifestações de desequi...

Os «quadros» como agentes estratégicos de desenvolvimento das organizações: con...

DINÂMIA'CET, Dezembro de 2009. ; O presente artigo pretende reflectir sobre os «quadros» enquanto agentes estratégicos de desenvolvimento das organizações. A partir desta abordagem poder-se-á, por um lado, compreender melhor a importância das funções e, por inerência, dos saberes e/ou das competências dos quadros superiores na actualidade, por outro lado, responder à questão: de que falamos quando nos referimo...

Acetylcholine release and choline uptake by cuttlefish (Sepia officinalis) opti...

Acetylcholine (ACh), which is synthesized from choline (Ch), is believed to hold a central place in signaling mechanisms within the central nervous system (CNS) of cuttlefish (Sepia officinalis) and other coleoid cephalopods. Although the main elements required for cholinergic function have been identified in cephalopods, the transmembrane translocation events promoting the release of ACh and the uptake of Ch r...

Correction: Braz J Med Biol Res 2006; 39 (12): 1575-1580: HFE gene mutations in...

HFE gene mutations in Brazilian thalassemic patients

Hereditary hemochromatosis is a disorder of iron metabolism characterized by increased iron intake and progressive storage and is related to mutations in the HFE gene. Interactions between thalassemia and hemochromatosis may further increase iron overload. The ethnic background of the Brazilian population is heterogeneous and studies analyzing the simultaneous presence of HFE and thalassemia-related mutations h...

Pollen contamination in a maritime pine clonal seed orchard using microsatellites

Pollen contamination is a serious problem in seed orchards, which may reduce genetic gain considerably. High levels of pollen contamination can be reached even when the stands are isolated by several hundred of meters from natural populations. Recently, molecular markers have been used to trace details of reproductive processes. The efficiency and utility of estimating mating system, gene flow and pollen contam...

Aluminium-induced impairment of Ca2+ modulatory action on GABA transport in bra...

The [gamma]-aminobutyric acid (GABA) is the major inhibitory neurotransmitter in vertebrate CNS. At GABAergic synapses, a high-affinity transporter exists, which is responsible for GABA reuptake and release during neurotransmission. GABA transporter activity depends on the phosphorylation/dephosphorylation state, being modulated by Ca2+/calmodulin-dependent protein phosphatase 2B (calcineurin). Aluminium is kno...

Estimation of population profiles of two strains of the fly Megaselia scalaris ...

Based on experimental population profiles of strains of the fly Megaselia scalaris (Phoridae), the minimal number of sample profiles was determined that should be repeated by bootstrap simulation process in order to obtain a confident estimation of the mean population profile and present estimations of the standard error as a precise measure of the simulations made. The original data are from experimental popul...

Anorexia nervosa and a psychosomatic investigation.

The paper begins with a revision of diagnostic criteria of Anorexia Nervosa (AN), stressing the importance of early diagnosis and transitional forms between AN and Bulimia Nervosa. A retrospective study of 13 female patients with AN, treated during 1990 in Lisbon Psychiatric University Clínica (Hospital de Santa Maria, Lisboa) is then described. The Authors outline some common characteristics of the sample, man...

Schistosomiasis mansoni in the municipality of Pedro de Toledo (São Paulo, Braz...

Due to the scarce information about the epidemiological features of schistosomiasis in which the vector is Biomphalaria tenagophila, an investigation was carried in Pedro de Toledo in 1980 where such peculiarity is observed. Stool examinations (Kato-Katz method) were performed in 4,741 individuals (22.8% positive to Schistosoma mansoni eggs) of this 583 had previously received chemoterapy and 4,158 remainders, ...