Results 101 to 110 of about 2,758,289 (295)

Effects of early-life environmental stress on risk-taking tendency of adolescents in rural areas of southwestern China

open access: yesFrontiers in Psychiatry
IntroductionAdolescence is a critical developmental phase characterized by increased risk-taking behaviors, which are not inherently maladaptive. According to life history theory, individuals raised in harsh and unpredictable environments are more likely
Jing Wu, Qiaobing Wu
doaj   +1 more source

2. Toynbee and the Cyclical Pattern of History

open access: yes, 1958
There has been recently a return on the part of some writers to the Greek theory that the course of history follows a cyclical pattern. An important motivation for this return is the conviction that neither the theory of progress nor the classical ...
Bloom, Robert L.   +6 more
core  

In vitro properties of patient serum predict clinical outcome after high dose rate brachytherapy of hepatocellular carcinoma

open access: yesMolecular Oncology, EarlyView.
Following high dose rate brachytherapy (HDR‐BT) for hepatocellular carcinoma (HCC), patients were classified as responders and nonresponders. Post‐therapy serum induced increased BrdU incorporation and Cyclin E expression of Huh7 and HepG2 cells in nonresponders, but decreased levels in responders.
Lukas Salvermoser   +14 more
wiley   +1 more source

The Future of Systematics: Tree-Thinking Without the Tree [PDF]

open access: yes, 2012
Phylogenetic trees are meant to represent the genealogical history of life and apparently derive their justification from the existence of the tree of life and the fact that evolutionary processes are tree-like.
Velasco, Joel D.
core   +2 more sources

A synthetic benzoxazine dimer derivative targets c‐Myc to inhibit colorectal cancer progression

open access: yesMolecular Oncology, EarlyView.
Benzoxazine dimer derivatives bind to the bHLH‐LZ region of c‐Myc, disrupting c‐Myc/MAX complexes, which are evaluated from SAR analysis. This increases ubiquitination and reduces cellular c‐Myc. Impairing DNA repair mechanisms is shown through proteomic analysis.
Nicharat Sriratanasak   +8 more
wiley   +1 more source

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

open access: yesMolecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié   +16 more
wiley   +1 more source

Theory, Method and British Political Life History [PDF]

open access: yesPolitical Studies Review, 2011
The British tradition of political life history has six conventions: ‘tombstone’ biography, separation of public and private lives, life without theory, objective evidence and facts, character and storytelling. I describe each in turn and review the main debates in the tradition before turning to the swingeing critique by ‘the interpretive turn ...
openaire   +2 more sources

Patient‐specific pharmacogenomics demonstrates xCT as predictive therapeutic target in colon cancer with possible implications in tumor connectivity

open access: yesMolecular Oncology, EarlyView.
This study integrates transcriptomic profiling of matched tumor and healthy tissues from 32 colorectal cancer patients with functional validation in patient‐derived organoids, revealing dysregulated metabolic programs driven by overexpressed xCT (SLC7A11) and SLC3A2, identifying an oncogenic cystine/glutamate transporter signature linked to ...
Marco Strecker   +16 more
wiley   +1 more source

Safe Periods and Safe Activities: Two Phenological Responses to Mortality

open access: yesEcology and Evolution
Phenology is often thought to evolve mainly in response to food availability, yet recent studies have focused on predation. Predation may explain apparent mismatches between phenology and resources. One type of phenological response to predation involves
Théo Constant   +3 more
doaj   +1 more source

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