Results 41 to 50 of about 33,748,190 (335)

Reducing the harms of cannabis use in youth post-legalization: insights from Ontario youth, parents, and service providers

open access: yesHarm Reduction Journal
Background Canada has one of the highest prevalence of cannabis use globally, particularly among young adults aged 20–24 (50%) and youth aged 16–19 (37%).
Toula Kourgiantakis   +8 more
doaj   +1 more source

Important Food Sources of Fructose‐Containing Sugars and Incident Hypertension: A Systematic Review and Dose‐Response Meta‐Analysis of Prospective Cohort Studies

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Sugar‐sweetened beverages are associated with hypertension. We assessed the relation of important food sources of fructose‐containing sugars with incident hypertension using a systematic review and meta‐analysis of prospective cohort studies ...
Qi Liu   +9 more
doaj   +1 more source

Local Out-Tournaments with Upset Tournament Strong Components I: Full and Equal {0,1}-Matrix Ranks [PDF]

open access: yes, 2010
A digraph D is a local out-tournament if the outset of every vertex is a tournament. Here, we use local out-tournaments, whose strong components are upset tournaments, to explore the corresponding ranks of the adjacency matrices.
Derby, Jason M.   +2 more
core   +1 more source

Using temporal correlation in factor analysis for reconstructing transcription factor activities [PDF]

open access: yes, 2008
Two-level gene regulatory networks consist of the transcription factors (TFs) in the top level and their regulated genes in the second level. The expression profiles of the regulated genes are the observed high-throughput data given by experiments such ...
Pournara, Iosifina, Wernisch, Lorenz
core   +5 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Digraphs with Isomorphic Underlying and Domination Graphs: Pairs of Paths [PDF]

open access: yes, 2010
A domination graph of a digraph D, dom (D), is created using thc vertex set of D and edge uv ϵ E (dom (D)) whenever (u, z) ϵ A (D) or (v, z) ϵ A (D) for any other vertex z ϵ A (D).
Factor, Kim A. S., Langley, Larry J.
core   +1 more source

Hepatocyte growth factor, a key tumor-promoting factor in the tumor microenvironment [PDF]

open access: yes, 2017
The tumor microenvironment plays a key role in tumor development and progression. Stromal cells secrete growth factors, cytokines and extracellular matrix proteins which promote growth, survival and metastatic spread of cancer cells.
Galemmo, Robert   +3 more
core   +2 more sources

RAD50 missense variants differentially affect the DNA damage response and mitotic progression

open access: yesFEBS Letters, EarlyView.
RAD50 incorporates into the MRN complex and initiates the DNA damage response. Furthermore, RAD50 promotes mitotic progression. RAD50 missense variants capable of forming an MRN complex supported the DNA damage response and mitotic features to different extents in complementation experiments, indicating these functions are separable and might impact ...
Hanna Redeker   +9 more
wiley   +1 more source

Characteristics of child welfare investigations reported by healthcare professionals in Ontario: secondary analysis of a regional database

open access: yesBMJ Paediatrics Open, 2021
Objectives This study examines the characteristics and outcomes of child welfare investigations reported by hospital-based and community-based healthcare professionals.Methods A sample of 7590 child maltreatment-related investigations from the Ontario ...
Barbara Fallon   +7 more
doaj   +1 more source

A Characterization of Connected (1,2)-Domination Graphs of Tournaments [PDF]

open access: yes, 2011
Recently. Hedetniemi et aI. introduced (1,2)-domination in graphs, and the authors extended that concept to (1, 2)-domination graphs of digraphs. Given vertices x and y in a digraph D, x and y form a (1,2)-dominating pair if and only if for every other ...
Factor, Kim A. S., Langley, Larry J.
core   +1 more source

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