Results 111 to 120 of about 14,991,628 (388)

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

Assessing the impact of message relevance and frequency on physical activity change: A secondary data analysis from the random AIM trial

open access: yesDigital Health
Text messages are widely used to deliver intervention content; however, sending more intensive messages may not always improve behavioral outcomes. This study investigated whether message frequency was associated with daily physical activity, either by ...
Jingchuan Wu   +3 more
doaj   +1 more source

Accelerometer-derived “Weekend Warrior” Physical Activity, Genetic Susceptibility, and Incident Rheumatoid Arthritis: A Prospective Cohort Study

open access: yesJournal of Clinical Rheumatology and Immunology
Background: Physical activity is associated with a reduced risk of rheumatoid arthritis (RA). However, it is unclear whether the ‘weekend warrior’ (WW) pattern–characterized by achieving the majority of moderate-to-vigorous physical activity (MVPA ...
Zhixiu Li, Zi-Hao Xu
doaj   +1 more source

Specifics of Educational Texts Selection for Schoolchildren Doing the Humanities Subjects

open access: yesОбразование и наука, 2015
The paper proposes the new approach to educational text selection for the humanities teaching. Its specifics is based on the wide interpretation of educational texts, as the culture texts involved in cognitive learning activity and fulfilling the ...
T. V. Oblasova
doaj   +1 more source

Diverse Galaxies Lithograph [PDF]

open access: yes, 2007
This Hubble Space Telescope image shows the diversity of galaxies in the universe. A huge elliptical galaxy, designated ESO 325-G004, dominates the image.

core  

Authoring Tools for Structuring Text-Based Activities

open access: yes, 2007
In this paper we present research results and discuss recent directions concerning the structural analysis of science texts and cognitive aspects of text elements, such as causal relationships between text elements. We outline the process of structuring text material for the design of dialogue activities for science text comprehension in the ...
Grigoriadou, M., Tsaganou, G.
openaire   +2 more sources

Mobile text messaging for health: a systematic review of reviews.

open access: yesAnnual Review of Public Health, 2015
The aim of this systematic review of reviews is to identify mobile text-messaging interventions designed for health improvement and behavior change and to derive recommendations for practice.
Amanda K. Hall   +2 more
semanticscholar   +1 more source

Dietary nitrate and nitrite protect against doxorubicin‐induced cardiac fibrosis and oxidative protein damage in tumor‐bearing mice

open access: yesFEBS Open Bio, EarlyView.
Chemotherapies such as doxorubicin can have toxic effects on healthy cardiovascular/heart tissue. Following up on a doxorubicin toxicity study in mice without tumors where nitrate water was cardioprotective (lessened toxicity), this study with tumor‐bearing mice undergoing doxorubicin treatment showed no negative effect of nitrate and nitrite on drug ...
Rama D. Yammani   +7 more
wiley   +1 more source

Active Learning for Hierarchical Text Classification [PDF]

open access: yes, 2012
Hierarchical text classification plays an important role in many real-world applications, such as webpage topic classification, product categorization and user feedback classification. Usually a large number of training examples are needed to build an accurate hierarchical classification system.
Xiao Li, Da Kuang, Charles X. Ling
openaire   +1 more source

Impact of a senior research thesis on students' perceptions of scientific inquiry in distinct student populations

open access: yesFEBS Open Bio, EarlyView.
This study addressed how a senior research thesis is perceived by undergraduate students. It assessed students' perception of research skills, epistemological beliefs, and career goals in Biochemistry (science) and BDC (science‐business) students. Completing a thesis improved confidence in research skills, resilience, scientific identity, closed gender‐
Celeste Suart   +4 more
wiley   +1 more source

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