Results 21 to 30 of about 72,487 (242)

Evaluation of culture medium on poly(3-hydroxybutyrate) production by Cupriavidus necator ATCC 17697: application of the response surface methodology

Heliyon, 2019
Polyhydroxyalkanoates (PHA), of which polyhydroxybutyrate (PHB) is the most abundant, are polymers of bacterial origin used for various applications in the medical, industrial and agricultural fields.
Daiana Nygaard, Oxana Yashchuk, Élida B. Hermida   +2 more
doaj   +1 more source

Travelling gradients in interacting morphogen systems [PDF]

, 2007
Morphogen gradients are well known to play several important roles in development; however the mechanisms underlying the formation and maintenance of these gradients are often not well understood.
Baker, Ruth E., Maini, P. K.
core   +2 more sources

Analysis of variance, normal quantile-quantile correlation and effective expression support of pooled expression ratio of reference genes for defining expression stability

Heliyon, 2017
Identification of a reference gene unaffected by the experimental conditions is obligatory for accurate measurement of gene expression through relative quantification.
Himanshu Priyadarshi, Rekha Das, Shivendra Kumar, Pankaj Kishore, Sujit Kumar   +4 more
doaj   +1 more source

The strand-biased transcription of SARS-CoV-2 and unbalanced inhibition by remdesivir

iScience, 2021
Summary: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a positive single-stranded RNA virus, causes the coronavirus disease 19 pandemic.
Yan Zhao, Jing Sun, Yunfei Li, Zhengxuan Li, Yu Xie, Ruoqing Feng, Jincun Zhao, Yuhui Hu   +7 more
doaj   +1 more source

Mathematical modelling of anisotropy in fibrous connective tissue [PDF]

, 1999
We present two modelling frameworks for studying dynamic anistropy in connective tissue, motivated by the problem of fibre alignment in wound healing. The first model is a system of partial differential equations operating on a macroscopic scale. We show
Murray, Murray, Orme, Perumpanani, Tracqui, Perumpanani, Dickinson, Barocas, Ferrenq, Barocas, Veronese, Winfree, Sherratt, Civelekoglu, Suciu, Ermentrout, Mogilner, Stevens, Deutsch, Cook, Chaplain, Olsen, Tranquillo, Olsen, Murray, Dale, Stopak, Trelstad, Guido, Mogilner, Bell, Ryan, Vernon, Welch, Clark, Gillery, Singer, Birk   +37 more
core   +2 more sources

Ecological firewalls for synthetic biology

iScience, 2022
Summary: It has been recently suggested that engineered microbial strains could be used to protect ecosystems from undesirable tipping points and biodiversity loss.
Blai Vidiella, Ricard Solé
doaj   +1 more source

Mathematical Modelling of Mosquito Dispersal in a Heterogeneous Environment. [PDF]

, 2012
Mosquito dispersal is a key behavioural factor that affects the persistence and resurgence of several vector-borne diseases. Spatial heterogeneity of mosquito resources, such as hosts and breeding sites, affects mosquito dispersal behaviour and ...
Alonso, Angelina Mageni Lutambi, Arino, Arino, Bayoh, Beier, Blower, Britch, Britch, Cano, Cariboni, Chitnis, Chitnis, Clarke, Cummins, Depinay, Gething, Gu, Hay, Hoare, Jeefoo, Jin, Keeling, Killeen, Kirby, Knols, Le Menach, Le Menach, Li, Li, Manga, Martens, Meinsma, Melissa A. Penny, Midega, Minakawa, Mwandawiro, Nakul Chitnis, Ngwa, Nourridine, Okogun, Otero, Otero, O’Sullivan, Raffy, Saul, Service, Service, Smallegange, Smith, Smith, Stoddard, Takken, Tatem, Thomas Smith, Tran, van den Driessche, Vazquez-Prokopec, White, Yakob, Yaro   +60 more
core   +1 more source

Evolution models with extremal dynamics

Heliyon, 2016
The random-neighbor version of the Bak-Sneppen biological evolution model is reproduced, along with an analogous model of random replicators, the latter eventually experiencing topology changes.
Petri P. Kärenlampi
doaj   +1 more source

Global dynamics of a colorectal cancer treatment model with cancer stem cells

Heliyon, 2017
We present and analyze a mathematical model of the treatment of colorectal cancer using a system of nonlinear ordinary differential equations. The model describes the effectiveness of immunotherapy and chemotherapy for treatment of tumor cells and cancer
Kristen Abernathy, Zachary Abernathy, Kelsey Brown, Claire Burgess, Rebecca Hoehne   +4 more
doaj   +1 more source

How Retroactivity Affects the Behavior of Incoherent Feedforward Loops

iScience, 2020
Summary: An incoherent feedforward loop (IFFL) is a network motif known for its ability to accelerate responses and generate pulses. It remains an open question to understand the behavior of IFFLs in contexts with high levels of retroactivity, where an ...
Junmin Wang, Calin Belta, Samuel A. Isaacson   +2 more
doaj   +1 more source