711 research outputs found
Novos dados sobre o urbanismo e histĂłria da cidade de Chaves
The accomplishment of a set archaeological survey in the Largo do Arrabalde, located in the historical centre of Chaves/Aquae Flaviae, allowed to achieve a reading of the urban evolution of the city, since middle of XXth century until the Roman period. Though set a findings discovered there, some answers are given, but other questions are added, hoping to the understanding its dynamism and recognizing the important picture of the social, economic and cultural development of this Roman urbs, the medieval, modern and contemporary site, and actual town
Balneários castrejos do Noroeste Peninsular : notĂcia de um novo monumento do Castro de Roques
Notice of the identification of a new indigenous bath structure in the Castro of Roques, Lima Valley, regarding the discussion of this finding about the location, chronology, typology and function of these protohistoric monuments of the peninsular Northwestern Castro’s Culture
Museu Militar de Bragança : fundação; práticas museológicas
O objecto de estudo decidido para este trabalho centra-se na reflexĂŁo sobre o Museu Militar de Bragança hoje, e as suas potencialidades enquanto gerador de desenvolvimento social. Para fazer esta reflexĂŁo consideramos pertinente a pesquisa histĂłrica do museu, desde a sua fundação, atendendo Ă função e os objectivos propostos inicialmente pela instituição, bem como aos procedimentos museolĂłgicos actualmente observados. O museu militar de Bragança surge no primeiro quartel do sĂ©culo XX como um espaço de salvaguarda das memĂłrias dos feitos bĂ©licos das forças militares sedeadas em Bragança. ApĂłs a erradicação da Ăşltima unidade militar de Bragança, em 1958, o museu Ă© temporariamente encerrado e trasladado o acervo para o Museu Militar de Lisboa. Já na dĂ©cada de 80 do sĂ©culo XX o museu volta a ser instalado no local de origem, a torre de menagem do castelo, e impõe-se como espaço \ memĂłria das vivĂŞncias militares da cidade. No entanto, cremos que, para que o Museu Militar potencie as suas ferramentas enquanto gerador de desenvolvimento social, seria desejável consumar alguns procedimentos museolĂłgicos, actualmente já impostos na Lei Quadro dos museus. Neste sentido, na segunda parte do presente trabalho propomo-nos estabelecer um plano geral de práticas museolĂłgicas adaptado ao caso concreto do Museu Militar de Bragança. O presente trabalho aspira assim: a caracterizar sucintamente o conceito actual de Museu; a descrever o edifĂcio onde está instalado o Museu Militar de Bragança, que constitui parte integrante da sua valĂŞncia enquanto gerador de desenvolvimento local; a pesquisar o processo de fundação do museu, os seus objectivos e funções enquanto parte integrante de um maior complexo militar como era o quartel. (...
Comparison of iodine content in dairy products and non-dairy beverages consumed in Portugal
Os lacticĂnios per tencem ao grupo de alimentos com maior teor de iodo.
Atualmente, cada vez mais a população por tuguesa está a substituir os
lacticĂnios por bebidas vegetais. Como estas bebidas tĂŞm geralmente
teores de iodo baixo, leva-nos a uma preocupação acrescida sobre o impacto
desta popularidade das bebidas vegetais nas necessidades de iodo
nos consumidores. O iodo Ă© um micronutriente essencial para a sĂntese
das hormonas da tireoide, presente em pequenas quantidades no corpo
humano. O principal objetivo deste trabalho foi a determinação de iodo
em lacticĂnios e bebidas vegetais consumidas em Por tugal. A metodologia
escolhida para a quantificação deste nutriente foi a espectrometria de
massa acoplada a plasma indutivo (ICP-MS) precedida por extração em
meio básico com placa de aquecimento de grafite. Foram analisadas 41
amostras, 15 leites, 20 iogur tes e 6 bebidas vegetais comercializadas por
marcas de grande aceitação pela população por tuguesa. Verificou-se que
os iogur tes apresentavam maiores concentrações de iodo, seguido do leite
e por fim, as bebidas vegetais. Estas apresentaram na sua maioria valores
inferiores ao limite de quantificação. Estes resultados levam-nos a concluir
que as populações com dietas restritas em lacticĂnios (intolerância Ă lactose,
alergia Ă proteĂna do leite ou vegans) poderĂŁo ter um risco acrescido de
uma ingestĂŁo inadequada em iodo.Dair y products belong to the food group with higher iodine content. Nowadays,
the Por tuguese population is increasingly replacing dair y products
for non-dair y beverages. As these beverages are generally low in iodine
content, it leads to an impact on iodine status in consumers due to an
increased popularity of non-dair y beverages. Iodine is an essential micronutrient
for the synthesis of thyroid hormones, present in small amounts in
the human body. The main objective of this work was the determination of
iodine in dair y products and non-dair y beverages consumed in Por tugal.
The methodology for the quantification of this nutrient was inductively coupled
plasma mass spectrometr y (ICP-MS) preceded by basic ex traction in
graphite heating block. We analysed 41 samples, 15 milks, 20 yoghur ts and
6 non-dair y beverages marketed by brands of great acceptance by the Portuguese
population. Yoghur ts had higher iodine concentrations, followed
by milk and finally non-dair y beverages. Most of non-dair y beverages presented
values below the limit of quantification. Therefore, populations with
restricted diets in dair y products (lactose intolerance, milk protein allergy
or vegans) may lead to an inadequate intake of iodine.info:eu-repo/semantics/publishedVersio
FIRST RECORD OF Tillandsia paraensis MEZ (BROMELIACEAE) IN THE CERRADO MARANHENSE
O MaranhĂŁo Ă© um estado brasileiro caracterizado pelo aspecto ecotonal entre os domĂnios da AmazĂ´nia e do Cerrado. O objetivo dessa pesquisa foi relatar a primeira ocorrĂŞncia de Tillandsia paraensis no domĂnio do Cerrado Maranhense e ampliar sua distribuição geográfica no MaranhĂŁo. O trabalho foi baseado a partir de coletas de campo. A identificação da espĂ©cie se deu atravĂ©s da revisĂŁo de literatura e a distribuição geográfica foi baseada em bancos de dados e literatura. Esse registro no Cerrado Maranhense de Icatu amplia a distribuição geográfica de T. paraensis em cerca de 240 km a leste de seu registro anterior no MaranhĂŁo, em Pedro do Rosário, em área de domĂnio da AmazĂ´nia, o que evidencia a influĂŞncia ecotonal entre os Biomas AmazĂ´nia e Cerrado.Palavras chave: AmazĂ´nia, Cerrado, EcĂłtono, MaranhĂŁo, Tillandsia paraensis.MaranhĂŁo is a Brazilian state characterized by the ecotonal aspect between the domains of the Amazon and the Cerrado. The objective of this research was to report the first occurrence of Tillandsia paraensis in the Cerrado Maranhense domain and to expand its geographical distribution in MaranhĂŁo. The work was based on field collections. The species was identified through a literature review and the geographical distribution was based on databases and literature. This record in the Cerrado Maranhense from Icatu expands the geographic distribution of T. paraensis by about 240 km east of its previous record in MaranhĂŁo, in Pedro do Rosário, in an area of the Amazon, which shows the ecotonal influence between the Biomes Amazon and Cerrado.Keywords:  Amazon; Cerrado; Ecotone; MaranhĂŁo; Tillandsia paraensis
Sarcopenia and atherosclerotic occlusive disease: how much we know and what we need to know about this association?
Purpose/Background: Sarcopenia (decrease of muscle mass and function) has been linked with atherosclerosis [1]. The
EWGSOP2 updated consensus, uses low muscle strength as the primary indicator of sarcopenia [2]. It is acknowledged that
strength is better than mass for predicting adverse outcomes [2]. Handgrip strength (HGS) is a simple assessment to estimate
overall muscular strength [3]. and is associated with cardiovascular mortality [4].
Objective: Analyze the relationship between HGS and atherosclerotic disease (carotid artery disease + lower extremity artery
disease).
Methods: Prospective observation study was conducted from January to December 2019. The clinical and demographic data
was recorded. Isometric HGS was measured with an adjustable handheld dynamometer (Jamar The higher value of each arm
was used to classify the patient as sarcopenic or non-sarcopenic. Definition of sarcopenia: HGS <30 kgf in men and <20 kgf in
women [5].
Results: 94 patients (aged 44–86 years) were analyzed: 64 sarcopenic and 30 non sarcopenic. Groups differed in the prevalence
of diabetes and smoking status (Table 1). No differences were found in the carotid parameters analyzed (Table 1). There was, a
difference in the prevalence of chronic limb-threatening ischemia (CLTI) in sarcopenic versus non-sarcopenic group (23.44%
versus 6.67% p = 0.046). Importantly, binary logistic regression showed that diabetes (p = 0.014), and HGS (p = 0.027) have a
significant effect on CLTI (Table 2).
Conclusions: No relationship was found between sarcopenia (measured by HGS) and carotid atherosclerosis, differing from
other authors [1,6]. In this study, sarcopenic had a higher incident of diabetes and CLTI. Sarcopenia and diabetes are reciprocally
related and may share a similar pathogenetic pathway [7
Pervasive gaps in Amazonian ecological research
Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4
While the increasing availability of global databases on ecological communities has advanced our knowledge
of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In
the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of
Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus
crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced
environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian
Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by
2050. This means that unless we take immediate action, we will not be able to establish their current status,
much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio
Estimating the global conservation status of more than 15,000 Amazonian tree species
Estimates of extinction risk for Amazonian plant and animal species are rare and not often incorporated into land-use policy and conservation planning. We overlay spatial distribution models with historical and projected deforestation to show that at least 36% and up to 57% of all Amazonian tree species are likely to qualify as globally threatened under International Union for Conservation of Nature (IUCN) Red List criteria. If confirmed, these results would increase the number of threatened plant species on Earth by 22%. We show that the trends observed in Amazonia apply to trees throughout the tropics, and we predict thatmost of the world’s >40,000 tropical tree species now qualify as globally threatened. A gap analysis suggests that existing Amazonian protected areas and indigenous territories will protect viable populations of most threatened species if these areas suffer no further degradation, highlighting the key roles that protected areas, indigenous peoples, and improved governance can play in preventing large-scale extinctions in the tropics in this century
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