Results 131 to 140 of about 595,672 (312)

Predictive value of the hip flexion test for fractures of the pelvis [PDF]

open access: yes, 1996
In 39 patients with pelvic injury, four clinical tests were performed during physical examination. Of these four tests; the positive and negative hip flexion test (active flexion of the hip with extension of the knee) had the highest predictive value for
vanWalsum, ADP, Ham, SJ, Vierhout, PAM
core  

Negative Predictive Value of Pap Testing [PDF]

open access: yes, 2012
ObjectiveTo estimate the accuracy of Pap testing for women who are human immunodeficiency virus (HIV)-seropositive, with a focus on negative predictive value.MethodsParticipants in the Women's Interagency HIV Study were monitored with conventional Pap tests every 6 months.
Massad, L Stewart   +7 more
openaire   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

ON PERFORMANCE OF METHODS FOR STATISTICAL SURVEILLANCE [PDF]

open access: yes, 1994
Statistical surveillance is used to detect a change in a process. It might for example be a change of the level of a characteristic of an economic time series or a change of heart rate in intensive care.
Åkermo, Göran
core  

Signal Intensity of High B-value Diffusion-weighted Imaging for the Detection of Prostate Cancer

open access: yesJournal of Biomedical Physics and Engineering, 2019
Background: Diffusion-weighted imaging (DWI) is a main component of multiparametric MRI for prostate cancer detection. Recently, high b value DWI has gained more attention because of its capability for tumor characterization. Objective: To assess based
Rezaeian A.   +5 more
doaj  

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Ascitic fluid analysis for the differentiation of malignancy related and nonmalignant ascites [PDF]

open access: yes, 1991
The authors tried to differentiate malignancy-related from nonmalignant ascites with a sequence of sensitive followed by specific ascitic-fluid parameters. There were four results of this study. First, of nine parameters investigated in a first series of
Paumgartner, Gustav   +4 more
core  

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