Results 61 to 70 of about 187,525 (244)

Examining the impact of violations of local item independence assumption on test equating methods

International Journal of Assessment Tools in Education
This study investigates the impact of violating the local item independence assumption by loading certain items onto a second dimension on test equating errors in unidimensional and dichotomous tests.
Şeref Tan, Mehmet Fatih Doğuyurt
doaj   +1 more source

Penyetaraan (Equating) Ujian Akhir Sekolah Berstandar Nasional (UASBN) Dengan Teori Tes Klasik

Jurnal Pendidikan dan Kebudayaan, 2011
Since the enactment of the National Standard School Final Examination (UASBN) in school year 2007/2008, the province is authorized to construct exam questions based on the same lattice issued BSNP.
Arniati Prasedyawati Herkusumo
doaj   +1 more source

autopsych: An R Shiny tool for the reproducible Rasch analysis, differential item functioning, equating, and examination of group effects.

PLoS ONE, 2021
In this paper, we present autopsych, a novel online tool that allows school assessment experts, test developers, and researchers to perform routine psychometric analyses and equating of student test data and to examine the effect of student demographic ...
Matthew G R Courtney, Kevin C T Chang, Bing Mei, Kane Meissel, Luke I Rowe, Laila B Issayeva   +5 more
doaj   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

Exact soliton solutions of the one-dimensional complex Swift-Hohenberg equation

, 2003
Using Painlev\'e analysis, the Hirota multi-linear method and a direct ansatz technique, we study analytic solutions of the (1+1)-dimensional complex cubic and quintic Swift-Hohenberg equations. We consider both standard and generalized versions of these
Adrian Ankiewicz, Akhmediev, Ankiewicz, Aranson, Aranson, Aranson, Bekki, Berloff, Buceta, Cariello, Chow, Conte, Cross, Garcia-Ojalvo, Hohenberg, Karlsson, Ken-ichi Maruno, Lega, Lega, Marcq, Moores, Nail Akhmediev, Nozaki, Pereira, Sakaguchi, Sakaguchi, Sanchez-Morcillo, Sanchez-Morcillo, Staliunas, Staliunas, Swift, Tribelskii, van Saarloos, Weiss   +33 more
core   +1 more source

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

Crowdsourcing for Identification of Polyp-Free Segments in Virtual Colonoscopy Videos

, 2017
Virtual colonoscopy (VC) allows a physician to virtually navigate within a reconstructed 3D colon model searching for colorectal polyps. Though VC is widely recognized as a highly sensitive and specific test for identifying polyps, one limitation is the ...
Baker, Kevin, Barish, Matthew, Kaufman, Arie, Marino, Joseph, Mirhosseini, Seyedkoosha, Nadeem, Saad, Park, Ji Hwan   +6 more
core   +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

KARAKTERISTIK METODE PENYETARAAN SKOR TES UNTUK DATA DIKOTOMOS

Jurnal Penelitian dan Evaluasi Pendidikan, 2013
Penelitian ini bertujuan untuk menemukan: 1) akurasi estimasi parameter item pada test equating menggunakan metode Item Characteristic Curve (ICC). 2) sensitivitas metode linear yang terdiri atas Tucker - Levine score method dan Levine true score method ...
Nonoh Siti Aminah
doaj  

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

Molecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero, Alejandro Belmonte‐Fernández, Mónica González‐Moreno, Laura Rodríguez‐Cordero, Begoña Pérez‐Valderrama, Joaquín Herrero‐Ruíz, Francisco Romero, Carmen Sáez, Miguel Á. Japón   +8 more
wiley   +1 more source