Results 121 to 130 of about 4,172,623 (256)

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Formation tracking of mobile robots based on locally measured relative positions with velocity saturation

open access: yesVietnam Journal of Mechanics
This work addresses the formation tracking of a team of multiple mobile robots subject to nonholonomic constraints and velocity saturation. A leader robot is used that follows a straight line with a constant speed. The other follower robots maintain the
Quoc Van Tran   +2 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Aplikasi Sistem Multiplexer Untuk Penambahan Jumlah Sensor Pada Robot Line Follower Berbasis Atmega32 [PDF]

open access: yes, 2013
Tujuan Proyek Akhir ini adalah untuk: 1) mengaplikasikan teknik multiplexer untuk mengekspansi port mikrokontroller ATmega32 untuk menambah jumlah sensor pada robot line follower; 2) merealisasikan rancangan hardware agar robot line follower bisa ...
Ilham Wha'is, Abdhan Saquro
core  

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Pembuatan Robot Line Follower Berbasis ATMega8535

open access: yes, 2010
06120010 - .Selama ini, para pekerja pabrik kimia melakukan kegiatan pemindahan zat kimia secara manual. Hal tersebut dapat membahayakan atau bahkan menimbulkan kematian apabila para pekerja tidak waspada.
Pandiangan, Tumpal   +1 more
core  

PERANCANGAN ROBOT PEMADAM API BERBASIS LINE FOLLOWER [PDF]

open access: yes, 2018
Robot adalah suatu sistem yang memiliki kemampuan untuk mengindera lingkungan sekitar dan melakukantanggapan yang sesuai dengan tingkat kecerdasan buatan yang ditanamkan kepadanya. Salah satu jenis robotyang populer adalah robot line follower pemadam api,
Valentino, Thezar Febry
core  

Axon targeting of transcriptionally distinct pioneer neurons is regulated by retinoic acid signaling

open access: yesNature Communications
During nervous system development, pioneer neurons (pioneers) extend their axons toward distant targets, creating a scaffold for follower neurons and defining the initial structure of the nervous system.
Benjamin M. Woodruff   +5 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

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