Results 11 to 20 of about 13,437,562 (154)

Study of the detection efficiency of a surface contamination monitor according to the distance and the surface emission rate

Saúde & Tecnologia, 2015
Introduction – A radioactive contamination needs to be quantified in case it eventually occurs. Therefore it is necessary to ensure that the operating conditions of a surface contamination monitor are characterized by determining its detection efficiency.
Diana D. Duarte, João Cardoso, Luís Santos, Carlos Oliveira, Lina Vieira   +4 more
doaj   +1 more source

Detection and comparison of cut‐off values for total AgNOR area/nuclear area and AgNOR number/nucleus in benign thyroid nodules and normal thyroid tissue

Cell Biology International, 2013
Argyrophilic nucleolar organising region associated proteins (AgNORs) are of interest in a variety of diseases including thyroid disorders. We have investigated the cut‐off values for AgNOR count and with a new approach, Total AgNOR area/nuclear area ...
R. Eroz, N. Cucer, K. Unluhizarci, F. Ozturk   +3 more
semanticscholar   +1 more source

Dose rate and energy dependency of an electronic personal dosemeter

Saúde & Tecnologia, 2015
Introduction – The measurement of occupational exposure to radiation doses can be completed with an electronic personal dosemeter that allows a direct reading and alarm function of the received radiation dose.
Diana D. Duarte, João Cardoso, Luís Santos, Carlos Oliveira, Lina Vieira   +4 more
doaj   +1 more source

SIRT1 – a new mammalian substrate of nuclear autophagy

Autophagy, 2020
Macroautophagic/autophagic degradation of nuclear components (or nuclear autophagy) is a poorly understood area in autophagy research. We previously reported the nuclear lamina protein LMNB1 (lamin B1) as a nuclear autophagy substrate in primary human ...
Lu Wang, Caiyue Xu, T. Johansen, S. Berger, Zhixun Dou   +4 more
semanticscholar   +1 more source

Correlating nuclear morphology and external force with combined atomic force microscopy and light sheet imaging separates roles of chromatin and lamin A/C in nuclear mechanics

bioRxiv, 2020
Nuclei are constantly under external stress – be it during migration through tight constrictions or compressive pressure by the actin cap – and the mechanical properties of nuclei govern their subsequent deformations.
Chad M. Hobson, Megan E. Kern, E. T. O'Brien, Andrew D. Stephens, M. Falvo, R. Superfine   +5 more
semanticscholar   +1 more source

Influência da escala de cores na avaliação qualitativa das imagens de cintigrafia de perfusão do miocárdio

Saúde & Tecnologia, 2022
Introdução – A cintigrafia de perfusão do miocárdio (CPM) é utilizada no diagnóstico e seguimento de pacientes com doença arterial coronária, sendo a sua avaliação frequentemente realizada através da análise visual dos cortes tomográficos.
Andreia Figueiredo, Emília Ramos, Elisabete Carolino, Tânia Vaz, Lina Vieira   +4 more
doaj   +1 more source

Multifunctional method for remote monitoring of the environment in the area of nuclear facilities

E3S Web of Conferences, 2019
In a paper the method for remote monitoring of the radiation characteristics of the environment in the area of the nuclear power plant is considered. To solve this problem, the need to use remote methods of environmental monitoring is justified A method ...
V. Davydov, V. Fadeenko, I. Fadeenko, V. Reznik, V. Kruglov, Nikita Popovskiy, V. Rud   +6 more
semanticscholar   +1 more source

Dopaminylation of histone H3 in ventral tegmental area regulates cocaine seeking

Science, 2020
More than a normal neurotransmitter The molecular mechanisms underlying the persistence of addiction remain largely unclear. Lepack et al. found that, with cocaine exposure, there is an intracellular accumulation of dopamine in neurons of a brain region ...
Ashley E. Lepack, Craig T. Werner, Andrew F. Stewart, S. Fulton, P. Zhong, Lorna Farrelly, Alexander C. W. Smith, Aarthi Ramakrishnan, Y. Lyu, Ryan M. Bastle, Jennifer A. Martin, Swarup Mitra, R. M. O’Connor, Zi-Jun Wang, H. Molina, G. Turecki, Li Shen, Zhen Yan, E. Calipari, D. Dietz, P. Kenny, I. Maze   +21 more
semanticscholar   +1 more source

Relative renal function estimate by renal scintigraphy with 99mTc-DMSA: influence of attenuation correction methods

Saúde & Tecnologia, 2015
Introduction – The estimate of relative renal function (RRF) through scintigraphy with dimercaptosuccinic acid labelled with Technetium-99 metastable (99mTc-DMSA) may be influenced by kidney depth (KD), due to attenuation by soft tissue surrounding the ...
Andreia Amaro, H. Silva, A. I. Santos, Elisabete Carolino, Tânia Vaz, Lina Vieira   +5 more
doaj   +1 more source

Influência da escala de cores na avaliação qualitativa das imagens de cintigrafia de perfusão do miocárdio

Saúde & Tecnologia, 2016
Introdução – A cintigrafia de perfusão do miocárdio (CPM) é utilizada no diagnóstico e seguimento de pacientes com doença arterial coronária, sendo a sua avaliação frequentemente realizada através da análise visual dos cortes tomográficos.
Andreia Figueiredo, Emília Ramos, Elisabete Carolino, Tània Vaz, Lina Vieira   +4 more
doaj   +1 more source