Results 111 to 120 of about 226,626 (309)
How often does a cubic hypersurface have a rational point? [PDF]
A cubic hypersurface in Pn defined over Q is given by the vanishing locus of a cubic form f in n+1 variables. It is conjectured that when n≥4, such cubic hypersurfaces satisfy the Hasse principle.
Beneish, Lea +1 more
core +1 more source
Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis
FEBS Open Bio, EarlyView.Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho +4 more
wiley +1 more source
FEBS Open Bio, EarlyView.UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová +2 more
wiley +1 more source
Rational points over $C_1$-fields of characteristic 0
, 2019 In the 1950s Lang studied the properties of $C_1$ fields, that is, fields over which every hypersurface of degree at most $n$ in a projective space of dimension $n$ has a rational point.
Pieropan, Marta
core
Active and Passive Realization of Fractance Device of Order 1/2
Active and Passive Electronic Components, 2008 Active and passive realization of Fractance device of order 1/2 is presented. The crucial point in the realization of fractance device is finding the rational approximation of its impedance function.
B. T. Krishna, K. V. V. S. Reddy
doaj +1 more source
Hydrostatic pressure activates HIF‐1α via β‐catenin to promote stemness in breast cancer cells
FEBS Open Bio, EarlyView.To mimic the elevated intestinal fluid pressure in breast cancers, we loaded human breast cancer cells (MCF‐7, MDA‐MB‐453, and BT‐474) to 50 mmHg hydrostatic pressure. Hydrostatic pressure exposure upregulated HIF‐1α and induced stemness in MCF‐7 and BT‐474 cells.
Da Zhai +8 more
wiley +1 more source
Macroeconomics After a Decade of Rational Expectations: Some Critical Issues [PDF]
The main section of this paper discusses competing theories of aggregate supply that are currently being utilized in macroeconomic models with rational expectations.
Bennett T. McCallum
core
Control of the wave equation at a rational point
, 1992 The wave equation is controlled by a force at one point, which is a rational point of the interval [-1, 1]: geometric interpretations are given of the controllable subclasses ...
Svobodny, Thomas P.
core +1 more source
Directed evolution of enzymes at the crossroads of tradition and innovation
FEBS Open Bio, EarlyView.An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova +2 more
wiley +1 more source
Irrational Nine-Point Centre is Impossible for a Triangle with Rational Vertices [PDF]
, 2023 In the Iranian Mathematics competition at The University of Isfahan in March 1978, the following problem was given. Problem 1. [1, 1.6.1] In the xy-plane a point is called ‘rational’ if both of its coordinates are rational. Prove that if the centre of
Chattopadhyay, Siddhartha Sankar
core