Results 61 to 70 of about 115,363 (318)

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

open access: yesAdvanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen   +5 more
wiley   +1 more source

Geo-demographic Features of the Formation Process in the Danube Region of Ukraine

open access: yesJournal of Danubian Studies and Research, 2013
The state of geo-demographic situation in the Danube region, which is formed during this period is examined. Unfortunately, in recent time within the Danube Region geodemographic indicators have worsened (decreased natality, quickly began to grow on ...
Victoriya Yavorskaya, Vyacheslav Todorov
doaj  

Development and prediction of the selected population movement indicators in the Czech Republic

open access: yesAgricultural Economics (AGRICECON), 2005
The paper is aimed at the presentation of findings obtained in the study of the developmental trends of the population reproduction indicators in the territory of the Czech Republic in the reference period 1993-2003.
M. Palát, E. Maca
doaj   +1 more source

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak   +10 more
wiley   +1 more source

Reassessing the impact of smoking on preeclampsia/eclampsia: Are there age and racial differences? [PDF]

open access: yes, 2014
To investigate the association between cigarette use during pregnancy and pregnancy-induced hypertension/preeclampsia/eclampsia (PIH) by maternal race/ethnicity and age.This retrospective cohort study was based on the U.S. 2010 natality data.
Chang, Jen Jen   +5 more
core   +5 more sources

The world population and its expected future evolution

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2010
Population numbers on Planet Earth grow steadily. The most rapid increase took place over the 20th century when the number of world population rose from 1.6 billion up to 6 billion. Demographic revolution affect the process of changes. The paper has paid
Marie Prášilová, Pavla Hošková
doaj   +1 more source

Engineered Microfluidic Organoid Systems: New Paradigms for Menopause Mechanism Research and Personalized Medicine

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores the integration of microfluidic technology with organoid systems as an innovative platform for studying menopausea complex multi‐organ condition. By enabling precise simulation of inter‐organ communication and hormone responses, microfluidic organoids offer a physiologically relevant model for investigating menopausal syndrome and ...
Qianyi Zhang   +4 more
wiley   +1 more source

On certain new exact solutions of a diffusive predator-prey system

open access: yes, 2012
We construct exact solutions for a system of two nonlinear partial differential equations describing the spatio-temporal dynamics of a predator-prey system where the prey per capita growth rate is subject to the Allee effect. Using the $\big(\frac{G'}{G}\
Kraenkel, R. A.   +2 more
core   +1 more source

IL1R2 Marks and Sorts a Spermatogonial Stem Cell Population Critical for Restoring Spermatogenesis Upon Interruption in Mammals

open access: yesAdvanced Science, EarlyView.
Spermatogonial stem cells (SSCs) provide critical support to spermatogenesis. Here, the author established Il1r2 as a sorting marker for SSCs, with which further insights into the SSC heterogeneity and dynamic features can be obtained. They also confirmed findings in both mouse and human, thus validating IL1R2 as the surface marker for isolating and ...
Pengyu Li   +19 more
wiley   +1 more source

Basic Demographic Processes in Croatia [PDF]

open access: yes, 2005
U radu se razmatraju glavni demografski procesi u suvremenom razvoju hrvatskog stanovništva: ukupna, prirodna i emigracijska depopulacija i demografsko starenje. Objašnjava se međusobna kauzalnost procesa opće i parcijalne depopulacije. Rezultati upućuju
Dražen Živić, Ivo Turk, Nenad Pokos
core   +1 more source

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