Results 31 to 40 of about 5,924,380 (291)

Modern techniques of magnetic resonance in the evaluation of primary central nervous system lymphoma: contributions to the diagnosis and differential diagnosis

open access: yesRevista Brasileira de Hematologia e Hemoterapia, 2016
In addition to findings from conventional magnetic resonance imaging, modern magnetic resonance imaging techniques have provided important information about tumor metabolism, in vivo metabolite formation, water molecule diffusion, microvascular density ...
Antonio José da Rocha   +4 more
doaj   +1 more source

Internal resonance vibration induced by nonlinearity of primary suspension system in high-speed vehicle system

open access: yes, 2017
This paper studies the phenomenon of internal resonance in high-speed vehicle system under high frequency periodic excitations. A numerical model of the vehicle system taking into consideration the dynamic effects of the primary suspension system and the
邢云林   +4 more
core   +1 more source

ESR, ENDOR and TRIPLE resonance studies of the primary donor radical cation P960+ in the photosynthetic bacterium Rhodopseudomonas viridis [PDF]

open access: yes, 1988
The light-induced radical cation of the primary electron donor P960+• in photosynthetic reaction centers from Rhodopseudomonas viridis has been investigated by ESR, ENDOR and TRIPLE techniques.
Lendzian, F.   +13 more
core   +1 more source

Head-Positioning Control Using Virtual Resonant Modes in a Hard Disk Drive

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
In conventional control systems in hard disk drives, it is difficult to compensate for disturbances above the primary mechanical resonance. In this paper, a design method that uses a virtual resonant mode in head-positioning systems of hard disk drives ...
Takenori ATSUMI
doaj   +1 more source

Time–frequency analysis of serum with proton nuclear magnetic resonance for diagnosis of pancreatic cancer

open access: yesScientific Reports, 2020
Although serum markers such as carcinoembryonic antigen (CEA) and carbohydrate antigen (CA19-9) have been widely used in screening for pancreatic cancer (PC), their sensitivity and specificity are unsatisfactory. Recently, a novel tool of analyzing serum
Asahi Sato   +7 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan   +18 more
wiley   +1 more source

The cutaneous 'rabbit' illusion affects human primary sensory cortex somatopically [PDF]

open access: yes, 2006
We used functional magnetic resonance imaging (fMRI) to study neural correlates of a robust somatosensory illusion that can dissociate tactile perception from physical stimulation.
Rees, G.   +19 more
core   +1 more source

Simplified control strategy for resonance reduction of primary system

open access: yesAdvances in Mechanical Engineering, 2015
The tuned vibration absorber has become an effective device for vibration control in many engineering applications. However, using the tuned vibration absorber introduces a new resonance peak into the frequency response of the primary system and can ...
Ning Han   +3 more
doaj   +1 more source

Magnetic resonance imaging in primary bone tumors

open access: yesSeminars in Roentgenology, 2000
MRI plays a major role in the evaluation and treatment planning of bone tumors. It should be used following plain films and before biopsy. The MR appearance of most tumors is nonspecific; however, the entire extent of the tumor and its relationship to adjacent structures can be determined at MRI providing a road map for the surgeon. The role of dynamic
J C, Leung, M K, Dalinka
openaire   +2 more sources

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