Results 101 to 110 of about 328,589 (305)

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Title page proof text for NBS Circular 593: The Federal Basis for Weights and Measures

, 1958
From NBS Circular 593: The Federal Basis for Weights and Measures: a historical review of Federal legislative effort, statutes, and administrative action in the field of weights and measures in the United States.
National Institute of Standards and Technology and Technology
core  

TRAIL‐PEG‐Apt‐PLGA nanosystem as an aptamer‐targeted drug delivery system potential for triple‐negative breast cancer therapy using in vivo mouse model

Molecular Oncology, EarlyView.
Aptamers are used both therapeutically and as targeting agents in cancer treatment. We developed an aptamer‐targeted PLGA–TRAIL nanosystem that exhibited superior therapeutic efficacy in NOD/SCID breast cancer models. This nanosystem represents a novel biotechnological drug candidate for suppressing resistance development in breast cancer.
Gulen Melike Demirbolat, Aslihan Kucuk, Omer Erdogan, Samed Ozer, Bensu Kozan, Tugba Cuceli, Erkan Gumus, Evrim Cevik, Ozge Cevik   +8 more
wiley   +1 more source

Circular RNA expression landscapes in myelodysplastic neoplasms: Associations with mutational signatures and disease progression

Molecular Oncology, EarlyView.
In this explorative study, the abundance of circular RNA molecules in bone marrow stem cells was found to be elevated in patients with high‐risk myelodysplastic neoplasms, and to be associated with an increased risk of progression to acute myeloid leukemia.
Eileen Wedge, Morten Tulstrup, Gabriele Todisco, Pedro Moura, Christophe Côme, Jakob Werner Hansen, Jakob Schmidt Jespersen, Balthasar Schlotmann, Maria Creignou, Mette Dahl, Claudia Schöllkopf, Klas Raaschou‐Jensen, Krister Wennerberg, Bo Porse, Joachim Weischenfeldt, Eva Hellström‐Lindberg, Lasse Sommer Kristensen, Kirsten Grønbæk   +17 more
wiley   +1 more source

New Rates from New Weights [PDF]

This paper describes the result and the methodology of updating nominal and real effective exchange rate weights on the basis of trade data from 1999 to 2001.
Tamim Bayoumi, Sarma Jayanthi, Jaewoo Lee   +2 more
core  

COMP–PMEPA1 axis promotes epithelial‐to‐mesenchymal transition in breast cancer cells

Molecular Oncology, EarlyView.
This study reveals that cartilage oligomeric matrix protein (COMP) promotes epithelial‐to‐mesenchymal transition (EMT) in breast cancer. We identify PMEPA1 (protein TMEPAI) as a novel COMP‐binding partner that mediates EMT via binding to the TSP domains of COMP, establishing the COMP–PMEPA1 axis as a key EMT driver in breast cancer.
Konstantinos S. Papadakos, Gilar Gorji‐bahri, Lejla Gradjan, Julia Zajac, Kacper Gil, Yvonne Thokozile Nduku, Anna M. Blom   +6 more
wiley   +1 more source

Kilogram Replica

This is a replica showing the size and shape of the kilogram standard. The replica is in a glass dome. The standard for the kilogram unit of mass is a cylinder of platinum-iridium alloy kept by the International Bureau of Weights and Measures near Paris.

core  

Insignia from John Quincy Adams' evaluation of "weights and measures" from pages 119 to 120 of his "Report upon Weights and Measures", transmitted to the Senate on February 22, 1821. Photo proof for NBS Circular 593: The Federal Basis for Weights and Measures

, 1958
From NBS Circular 593: The Federal Basis for Weights and Measures: a historical review of Federal legislative effort, statutes, and administrative action in the field of weights and measures in the United States.
National Institute of Standards and Technology and Technology
core  

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

Optimizing weighted k-means clustering with gradient-based methods

Systems Science & Control Engineering
Clustering methods are essential in medical and data-centric research, helping to reveal underlying patterns without the need for labelled data. This study introduces a gradient-based K-means framework that jointly refines centroids, sample weights, and ...
Krishnamoorthy S., B. Jaganathan
doaj   +1 more source