Results 41 to 50 of about 139,724 (186)

Linfadenectomia no câncer gástrico com hook laparotômico

open access: yesRevista do Colégio Brasileiro de Cirurgiões
O câncer gástrico é uma neoplasia frequente e de tratamento cirúrgico. Gastrectomia com linfadenectomia D2 é o procedimento padrão com intuito curativo. Os autores relatam o uso do hook laparotômico como alternativa técnica para linfadenectomia.
André Rossetti Portela   +2 more
doaj   +1 more source

Sharp gene pool transition in a population affected by phenotype-based selective hunting

open access: yes, 2005
We use a microscopic model of population dynamics, a modified version of the well known Penna model, to study some aspects of microevolution. This research is motivated by recent reports on the effect of selective hunting on the gene pool of bighorn ...
Ashley   +13 more
core   +2 more sources

Volumetric Comparison of Overall Brain and Neuropil Size Between Social and Non‐social Spiders: Exploring the Social Brain Hypothesis

open access: yesIntegrative Zoology, EarlyView.
Brain size may be influenced by the cognitive demands of sociality (social brain hypothesis). We used microCT to compare CNS and brain volumes in social versus solitary huntsman and crab spiders. Social huntsman spiders had larger arcuate and mushroom bodies, while social crab spiders had larger visual neuropils.
Vanessa Penna‐Gonçalves   +6 more
wiley   +1 more source

Vitamin A toxicity in a physical culturist patient: A case report and review of the literature

open access: yesAnnals of Hepatology, 2006
Excessive intake of vitamin A may produce acute or chronic toxicity. Vitamin A can be consumed in foods, fortified products and supplements. We present a case of a young physical culturist man who was referred to our Unit because of chronic liver disease
Gustavo Castaño   +2 more
doaj   +1 more source

Temporal Responses to Warming: Do Wild Herbivores Trade Off Heat, Predators, and Humans?

open access: yesIntegrative Zoology, EarlyView.
We untangled how summer temperature, predators, and humans influenced behavioral responses in two deer species. Both reduced their daily activity level in response to warming, yet only roe deer increased nocturnality to avoid heat. Conversely, fallow deer traded off heat avoidance with predator avoidance.
Noemi Pallari   +6 more
wiley   +1 more source

Gli «oscuri turiboli» del simbolo. Penna e d’Annunzio

open access: yesArchivio d’Annunzio, 2022
In the interpretation of his trained readers Sandro Penna has been the object of a great misunderstanding. For a long time his relationship with the greatest poetical works of his time has been hidden; it happened the same with the authors he could ...
Deidier, Roberto
doaj   +1 more source

Garotas de papel

open access: yesFronteiras, 2018
O presente artigo aborda a produção gráfica de Alceu Penna. Discute, em especial, sua atividade na coluna Garotas do Alceu que circulou nas páginas da grande revista brasileira de variedades de meados do século XX – O Cruzeiro (1928-1975) – de 1938 à ...
Daniele Queiroz Campos
doaj   +1 more source

Monte Carlo Simulations of Sexual Reproduction

open access: yes, 1996
Modifying the Redfield model of sexual reproduction and the Penna model of biological aging, we compare reproduction with and without recombination in age-structured populations.
Bernardes   +18 more
core   +1 more source

In for a penny: An empirical study of earthquake experience and non‐pharmaceutical intervention effectiveness in the Marche region

open access: yesAnnals of Public and Cooperative Economics, EarlyView.
Abstract This study investigates whether prior exposure to natural disasters influenced individual compliance with non‐pharmaceutical interventions (NPIs), specifically lockdown measures, during the Corona Virus Infectious Disease 2019 (COVID‐19) pandemic. Focusing on the Marche region of Italy, which experienced a severe earthquake in 2016, we exploit
Vincenzo Alfano   +2 more
wiley   +1 more source

The risk of extinction - the mutational meltdown or the overpopulation

open access: yes, 2006
The phase diagrams survival-extinction for the Penna model with parameters: (mutations rate)-(birth rate), (mutation rate)-(harmful mutations threshold), (harmful mutation threshold)-(minimal reproduction age) are presented.
Malarz, K.
core   +1 more source

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