Results 51 to 60 of about 303,346 (275)

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Evaluating accuracy and bias of different comparative judgment equating methods against traditional statistical equating

Frontiers in Education
Traditional common-item or common-person statistical equating cannot always be used for standard maintaining or linking between test forms. In some contexts, comparative judgment (CJ) methods which capture expert judgment of quality of student work on ...
Milja Curcin, Ming Wei Lee
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Comparing the methods of vertical equating for the math learning achievement tests for junior high school students

REID (Research and Evaluation in Education), 2018
Developing the students’ mathematical ability needs to be carried out to improve the teaching process. This is very important for continuous education. This study aimed to describe: (1) the characteristics of the mathematics achievement tests for grades ...
Chairun Nisa, Heri Retnawati
doaj   +1 more source

THEORETICAL ASPECTS OF USING TEST CONTROL FOR CONDUCTING SUMMATIVE CERTIFICATION OF UNIVERSITY STUDENTS

Освітній дискурс, 2021
For the development of a good evaluation instrument, persons who are involved in the process should follow all the recommended stages (planning, test specification, piloting, removing redundant items).
Liudmyla Kukhar, Oleksandr Tarasenko
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

SNSequate: Standard and Nonstandard Statistical Models and Methods for Test Equating

Journal of Statistical Software, 2014
Equating is a family of statistical models and methods that are used to adjust scores on two or more versions of a test, so that the scores from different tests may be used interchangeably.
Jorge González
doaj   +1 more source

Testing Nonperturbative Ansaetze for the QCD Field Strength Correlator [PDF]

, 2000
A test for the Gaussian and exponential Ansaetze for the nonperturbative parts of the coefficient functions, D^{nonpert.} and D_1^{nonpert.}, which parametrize the gauge-invariant bilocal correlator of the field strength tensors in the stochastic vacuum ...
Antonov, Campostrini, Di Giacomo, Dmitri Antonov, Dosch, Dosch, Meggiolaro, Migdal, Polyakov, Reuter, Shifman, Simonov   +11 more
core   +3 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Detectability of distributed consensus-based observer networks: An elementary analysis and extensions

, 2014
This paper continues the study of local detectability and observability requirements on components of distributed observers networks to ensure detectability properties of the network.
Ugrinovskii, V.
core   +1 more source