Search results for "Rind"
showing 10 items of 111 documents
Phylogeny, biogeography, and chromosome evolution of the amphitropical genus Grindelia (Asteraceae) inferred from nuclear ribosomal and chloroplast s…
2012
Artificial germination activation of Dialium corbisieri by imitation of ecological process.
2013
11 pages; International audience; Species of the gender Dialium commonly are trees found in Central African rainforests. They produce tasty sugary fruits, feeding numerous frugivores, but are, despite their valuable nutritional value, rarely exploited by humans. A potential reason for this could be the complexity of symbiotic dependence between trees and pollinators, germination activators, and dispersers causing problems in ancestral and contemporary domestication. We investigated Dialium corbisieri reproduction in the Democratic Republic of the Congo, Bandundu Province. Here we give a key for an artificial activation of germination of these trees ecologically adapted to the digestive syst…
Volatile components of ripe fruits of Morinda citrifolia and their effects on Drosophila
1996
Abstract The only larval resource of the specialist species, Drosophila sechellia , is ripe fruits of Morinda citrifolia . The chemical composition of this fruit, which is very toxic to most Drosophila species, was investigated and 51 compounds were abundant enough to be identified by GC-MS. The ripe fruit is characterized by a large amount of carboxylic acids, especially octanoic and hexanoic acids. The biological effects of the ripe fruit and its main acids were investigated with behavioural studies. Octanoic acid is responsible for the general toxicity of the fruit to most Drosophila species; D. sechellia is the only species which is resistant to this acid. Hexanoic acid has a unique eff…
Community structure affects trophic ontogeny in a predatory fish.
2016
While most studies have focused on the timing and nature of ontogenetic niche shifts, information is scarce about the effects of community structure on trophic ontogeny of top predators. We investigated how community structure affects ontogenetic niche shifts (i.e., relationships between body length, trophic position, and individual dietary specialization) of a predatory fish, brown trout (Salmo trutta). We used stable isotope and stomach content analyses to test how functional characteristics of lake fish community compositions (competition and prey availability) modulate niche shifts in terms of (i) piscivorous behavior, (ii) trophic position, and (iii) individual dietary specialization. …
Deciphering the functional role of spatial and temporal muscle synergies in whole-body movements
2018
AbstractVoluntary movement is hypothesized to rely on a limited number of muscle synergies, the recruitment of which translates task goals into effective muscle activity. In this study, we investigated how to analytically characterize the functional role of different types of muscle synergies in task performance. To this end, we recorded a comprehensive dataset of muscle activity during a variety of whole-body pointing movements. We decomposed the electromyographic (EMG) signals using a space-by-time modularity model which encompasses the main types of synergies. We then used a task decoding and information theoretic analysis to probe the role of each synergy by mapping it to specific task …
Modulação gênica em embriões humanos
2018
O recente implemento de moderna tecnologia -CRISPR/Cas9- possibilitou o avanço inquestionável da edição gênica em linhagem germinativa humana, seja por meio da manipulação de células precursoras de gametas, células tronco pluripotentes, gametas ou, até mesmo, de embriões. Mesmo levando em conta os benefícios terapêuticos preventivos demonstrados nas pesquisas básicas e préclínicas em embriões humanos, tais investigações encontram barreiras de aceitação em todo o mundo. Tal situação exige mudança de atitude no sentido de incrementar o debate em torno da aplicabilidade dessas novas tecnologias. Assim, a adequação das atuais regulamentações faz-se necessária e deve incluir a superação dos desa…
AS Grindeks un AS Olainfarm finanšu darbības rādītāju analīze un salīdzinājums
2018
Bakalaura darba tēma ir AS Grindeks un AS Olainfarm finanšu darbības rādītāju analīze un salīdzinājums. Bakalaura darba mērķis ir, pamatojoties uz AS Grindeks un AS Olainfarm gada pārskatu finanšu analīzi, novērtēt uzņēmumu finansiālo stāvokli un izstrādāt priekšlikumus to uzlabošanai. Bakalaura darbā tika apkopotas galvenās finanšu analīzes teorētiskās pamatnostādnes, tālāk tika veikts AS Grindeks un AS Olainfarm finansiālā stāvokļa novērtējums, izmantojot finanšu analīzes rādītājus, kā arī iegūtie rezultāti tika salīdzināti uzņēmumu starpā un ar farmācijas nozares vidējiem rādītājiem. Darba kopējais apjoms ir 100 lappuses un sastāv no 4 nodaļām.
Task-induced deactivation in diverse brain systems correlates with interindividual differences in distinct autonomic indices
2018
AbstractNeuroimaging research has shown that different cognitive tasks induce relatively specific activation patterns, as well as less task-specific deactivation patterns. Here we examined whether individual differences in Autonomic Nervous System (ANS) activity during task performance correlate with the magnitude of task-induced deactivation. In an fMRI study, participants performed a continuous mental arithmetic task in a task/rest block design, while undergoing combined fMRI and heart / respiration rate acquisitions using photoplethysmograph and respiration belt. As expected, task performance increased heart-rate and reduced the RMSSD, a cardiac index related to vagal tone. Across partic…
L'animismo rivisitato e i dibattiti sulle ontologie indigene
2014
Nell'articolo viene analizzata la recente interpretazione della nozione di animismo in antropologia legandola allo sviluppo del dibattito teorico sulle cosiddette 'ontologie indigene' e sui concetti di persona. Da questo punto di vista l'opera di Hallowell ha ispirato molti dei filoni di riflessione contemporanea su questi temi. Tra questi filoni, si possono annoverare: l'antropologia cognitiva di Boyer, l'antropologia fenomenologica di Ingold e Bird-David, la teoria degli schemi della pratica di Descola, la teoria del "prospettivismo amerindiano" di Viveiros de Castro. Dopo avere esaminato i caratteri e i limiti di ognuno di questi filoni, l'articolo si sofferma sulle posizioni più recenti…
Gene-diet interaction in plasma lipid response to plant sterols and stanols: A review of clinical trials
2021
Abstract Plant sterols and stanols (PS) are well known for their cholesterol-lowering effect by reducing intestinal absorption of cholesterol. However, genetic factors modulate the low-density lipoprotein cholesterol (LDL-C) response to PS therapy. This review examines clinical trials evaluating the impact of the main genes associated with response of plasma lipid concentrations to PS intake: APOE, CYP7A1, ABCG5/G8, NPC1L1, CETP, APOA4/A5, SCARBI, HMGCR, PPARα, LIPC, MTHFR and LPA. Evidence indicates that carriers of mutant allele of the CYP7A1 c. −204 A > C variant experience a greater plasma cholesterol reduction after PS intake, although there is discrepancy for the rest of genetic varia…