Results 41 to 50 of about 408,353 (261)

Slowloris DDoS Defense Mechanism

Вестник Дагестанского государственного технического университета: Технические науки
Objective. The objective of this study is to perform a software analysis of the Slowloris cyberattack and implement a protection mechanism against a Slowloris-type DDoS attack.Method.
P. V. Razumov, L. V. Cherkesova, E. A. Revyakina   +2 more
doaj   +1 more source

Plant Flavonoids in Mediterranean Species: A Focus on Flavonols as Protective Metabolites under Climate Stress

Plants, 2022
Flavonoids are specialized metabolites largely widespread in plants where they play numerous roles including defense and signaling under stress conditions.
Justine Laoué, Catherine Fernandez, Elena Ormeño   +2 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Gut Commensal Klebsiella pneumoniae Extracellular Vesicles Shape a Liver Microenvironment Conducive to Gut‐Liver Bacterial Translocation and Pro‐Tumorigenic Processes

Journal of Extracellular Vesicles
Bacterial extracellular vesicles (EVs) are emerging mediators of host–microbe communication; however, their role in human disease remains unclear. Here, we identify two bacterial small tRNAs (tsRNAs) enriched in gut commensal Klebsiella pneumoniae ...
Shogo Tsubaki, Sho Nashimoto, Rika Tanaka, Touya Toyomoto, Hiroyasu Tsutsuki, Ken Kato, Jun Nakayama, Kiminori Kimura, Kazuki Oshima, Yusuke Yamamoto, Takuji Okusaka, Minoru Esaki, Nobuhiro Kawai, Nobuyuki Ota, Yusuke Yoshioka, Takahiro Ochiya, Yoshimasa Saito, Tomohiro Sawa, Katsuto Hozumi, Juntaro Matsuzaki, Hitoshi Tsugawa   +20 more
doaj   +1 more source

Plasminogen activator inhibitor-1 promotes immune evasion in tumors by facilitating the expression of programmed cell death-ligand 1

Frontiers in Immunology
BackgroundIncreased levels of plasminogen activator inhibitor-1 (PAI-1) in tumors have been found to correlate with poor clinical outcomes in patients with cancer. Although abundant data support the involvement of PAI-1 in cancer progression, whether PAI-
Abd Aziz Ibrahim, Taku Fujimura, Tomoko Uno, Tomoya Terada, Ken-ichi Hirano, Hiroyuki Hosokawa, Akio Ohta, Toshio Miyata, Kiyoshi Ando, Takashi Yahata   +9 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

The therapeutic opportunities and pitfalls of using iron ion chelators to treat neurodegenerative diseases

FEBS Letters, EarlyView.
Although too much iron in the brain promotes neurodegeneration, iron ion chelators have had mixed effects in clinical trials. This review explains why; some chelators do not render the iron redox‐inactive (e.g., L1) whereas others do (e.g., desferrioxamine).
Barry Halliwell
wiley   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

In Defense of Mechanism [PDF]

Ecological Psychology, 2006
In Life Itself and in Essays on Life Itself, Robert Rosen (1991, 2000) argued that machines were, in principle, incapable of modeling the defining feature of living systems, which he claimed to be the existence of closed causal loops. Rosen's argument has been used to support critiques of computational models in ecological psychology.
openaire   +1 more source