Results 71 to 80 of about 2,284,562 (345)

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Statistical Analysis of Factors Associated with Diarrhea in Yemeni Children under Five: Insights from the 2022–2023 Multiple Indicator Cluster Survey

Journal of Epidemiology and Global Health
Diarrheal disease remains a significant cause of preventable morbidity and mortality in the pediatric population, particularly among children below five years of age.
Ali Satty, Mohyaldein Salih, Faroug A. Abdalla, Ashraf F. A. Mahmoud, Elzain A. E. Gumma, Gamal Saad Mohamed Khamis, Ahmed M. A. Adam, Abaker A. Hassaballa, Omer M. A. Hamed, Zakariya M. S. Mohammed   +9 more
doaj   +1 more source

Karyological and molecular studies between six species of Plantago in the Northern border region at Saudi Arabia

Journal of Taibah University for Science, 2019
Karyotype characters, mitotic metaphase chromosomes, and haploid ideograms of six species of Plantago L. species. Analysis of somatic metaphases showed that the chromosome numbers of these species were 2n = 8 for P. ovata, 2n = 10 for P.
Ahmed Kamal Eldin Osman, Mohamed Abd El-Hameid Abdein   +1 more
doaj   +1 more source

Transportation infrastructure and the border economy [PDF]

Trade ; Imports ; Exports ; Employment (Economic theory) ; North American Free Trade ...
Carlos Manzanares, Keith Phillips
core  

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

A demonstration of high precision GPS orbit determination for geodetic applications [PDF]

High precision orbit determination of Global Positioning System (GPS) satellites is a key requirement for GPS-based precise geodetic measurements and precise low-earth orbiter tracking, currently under study at JPL.
Border, J. S., Lichten, S. M.
core   +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

ChatGPT’s impact on ESP writing proficiency and learner autonomy: An experimental study

Technology in Language Teaching & Learning
This study investigates ChatGPT's efficacy in fostering autonomous ESP writing development across different proficiency levels, while identifying its strengths and limitations in enhancing specific writing competencies.
Amr M. Mohamed, Abdul Aziz Mohamed Mohamed Ali El Deen, Reema O. Abukhait, Fatma Dahleb, Yasmine B. Khan, Hassen A. Jmaiel   +5 more
doaj   +1 more source

Border of Spacetime

, 2004
It is still uncertain whether the cosmic censorship conjecture is true or not. To get a new insight into this issue, we propose the concept of the border of spacetime as a generalization of the spacetime singularity and discuss its visibility.
C. Gundlach, C. Gundlach, I. Antoniadis, J.M. MartínGarcía, Ken-ichi Nakao, L. Randall, L. Randall, M.W. Choptuik, N. Arkani-Hamed, R. Penrose, R. Penrose, T. Harada, T. Koike, Tomohiro Harada   +13 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source