Results 31 to 40 of about 350,704 (260)
Coefficient Alpha and the Internal Structure of Tests [PDF]
Psychometrika, 1951 A general formula (α) of which a special case is the Kuder-Richardson coefficient of equivalence is shown to be the mean of all split-half coefficients resulting from different splittings of a test. α is therefore an estimate of the correlation between two random samples of items from a universe of items like those in the test.
openaire +2 more sources
Degradation mechanism of the von Willebrand factor A2 domain by nattokinase
FEBS Letters, EarlyView.Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto +3 more
wiley +1 more source
MethodsXKrippendorff's Alpha is a measure for assessing inter-rater reliability, facilitating triangulated evaluations among multiple raters. Indeed, Krippendorff's Alpha is key in validating the dependability of human assessments, thereby reinforcing the ...
Giacomo Marzi +2 more
doaj +1 more source
أثر مستويات اليقظة العقليه وحكمة تناول الاختبار في تقدير معامل ألفا لكرونباك [PDF]
مجلة العلوم التربوية - کلية التربية بقناالمستخلصهدفت الدراسة الحالية إلى تحري تأثير مستويات اليقظة العقيلة وحكمة تناول الاختبار في تقدير معامل ألفا لكرونباك، وقد استخدام الباحث مقياس اليقظة العقلية ومقياس حكمة تناول الاختبار من إعداد الباحث لجمع بيانات البحث الحالي، وحسبت تقديرات معامل ألفا في
هدى على عمران +2 more
doaj +1 more source
Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations
FEBS Letters, EarlyView.The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas +6 more
wiley +1 more source
Tribology Online, 2015 The aim of this study was to examine the mechanical characteristics of a polyvinyl alcohol hydrogel (PVA-H) as a candidate material for artificial joint cartilage. In the study, PVA-H was filled with α-tricalcium phosphate (α-TCP) in order to
Kanae Yamamoto +2 more
doaj +1 more source
FEBS 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
Sahand Communications in Mathematical AnalysisIn this paper, we introduce a relatively new class, $\mathcal{\mathcal{B}}_{1}^\beta(\alpha)$, namely the class of Beta-Bazilevi\v{c} function is generated by the function Bazilevi\v{c} $\mathcal{B}_{1}(\alpha)$.
Sa'adatul Fitri, Mohamad Muslikh
doaj +1 more source
The full set of polarized deep inelastic scattering structure functions at NNLO accuracy
European Physical Journal C: Particles and Fields, 2022 We present the second order contributions to the coefficient functions for the parity violating polarized structure functions $$g_L$$ g L and $$g_4$$ g 4 , thus completing the $${\mathcal {O}}(\alpha _S^2)$$ O ( α S 2 ) knowledge on DIS structure ...
Ignacio Borsa +2 more
doaj +1 more source
Heliyon, 2021 Plant breeding experiments require the use of appropriate experimental designs that will efficiently block variation due to wide heterogeneity nature of tropical soils.
Richard Olutayo Akinwale +3 more
doaj +1 more source