Results 81 to 90 of about 190,359 (307)

Upregulation of Integrin-α6 and Integrin-β1 Gene Expressions in Mouse Spermatogonial Stem Cells after Continues and Pulsed Low Intensity Ultrasound Stimulation

open access: yesCell Journal, 2017
Objective low intensity ultrasound (continues and pulsed) is a form of energy. Spermatogonial stem cells (SSCs) are at the base of male fertility. This study investigated the effects of low intensity ultrasound stimulation (LIUS) and low intensity ...
Mahdi Mohaqiq   +3 more
doaj   +1 more source

Institutional Explanations of Economic Development: the Role of Precious Metals [PDF]

open access: yes
Recent research has emphasized the influence of colonization on the institutional development and economic performance in former European colonies. Where European colonizers settled, they replicated the investment-conducive institutions found at home. It
Elissaios Papyrakis, Reyer Gerlagh
core  

Real-time detection of riboflavin production by Lactobacillus plantarum strains and tracking of their gastrointestinal survival and functionality in vitro and in vivo using mCherry labeling [PDF]

open access: yes, 2019
Some strains of lactic acid bacteria (LAB) produce riboflavin, a water-soluble vitamin of the B complex, essential for human beings. Here, we have evaluated riboflavin (B2 vitamin) production by five Lactobacillus plantarum strains isolated from chicha ...
Aznar, Rosa   +10 more
core   +1 more source

A Synovium‐on‐Chip Platform to Study Multicellular Interactions in Arthritis

open access: yesAdvanced Healthcare Materials, EarlyView.
The Synovium‐on‐Chip comprises a thin microporous PDMS membrane to support co‐culture of fibroblast‐like synoviocytes (FLS), THP‐1‐derived macrophages, and endothelial cells, enabling real‐time analysis of synovial‐vascular interactions. FLS migration through the pores drives endothelial remodeling, while TNF‐α stimulation induces robust inflammatory ...
Laurens R. Spoelstra   +8 more
wiley   +1 more source

The Colonial Origins of Comparative Development: An Empirical Investigation [PDF]

open access: yes
We exploit differences in the mortality rates faced by European colonialists to estimate the effect of institutions on economic performance. Our argument is that Europeans adopted very different colonization policies in different colonies, with different
Daron Acemoglu   +2 more
core  

Medical Fabrics with Non‐Antibiotic, Supramolecular Antimicrobial Coatings: A Preventive Approach to Combat Biofilm Formation and Bacterial Dissemination

open access: yesAdvanced Healthcare Materials, EarlyView.
The study presents an antibiotic‐free strategy using medical fabrics coated with supramolecular assemblies of polyarginine and hyaluronic acid. These coatings showed strong antimicrobial and anti‐biofilm activity in vitro and in vivo, achieving major bacterial load reductions, including against MRSA.
Adjara Diarrassouba   +18 more
wiley   +1 more source

Spread of common native and invasive grasses and ruderal trees following anthropogenic disturbances in a tropical dry forest

open access: yesEcological Processes, 2017
Introduction A fundamental challenge to the integrity of tropical dry forest ecosystems is the invasion of non-native grass species. These grasses compete for resources and fuel anthropogenic wildfires.
Xavier A. Jaime   +3 more
doaj   +1 more source

Consent, Marriage and Colonialism: Indigenous Australian Women and Colonizer Marriages [PDF]

open access: yesJournal of Colonialism and Colonial History, 2005
In 1901, the year of Australian federation, the newly constituted State of Queensland restricted marriage between Indigenous women and non-Indigenous men. These amendments to the Aboriginal Protection Act legislation of 1897 criminalized the informal marital arrangements that criss-crossed Queensland's cultural and colonizing boundaries.
openaire   +1 more source

Persistence pays: how viruses promote host group survival. [PDF]

open access: yes, 2009
Recently, we have realized that viruses numerically dominate all life. Although viruses are known to affect host survival in populations, this has not been previously evaluated in the context of host group selection.
Villarreal, Luis P
core  

Evaluation of the Dual Impact of Nanotechnologies on Health and Environment Through Alternative Bridging Models

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores how alternative invertebrate and small‐vertebrate models advance the evaluation of nanomaterials across medicine and environmental science. By bridging cellular and organismal levels, these models enable integrated assessment of toxicity, biodistribution, and therapeutic performance.
Marie Celine Lefevre   +3 more
wiley   +1 more source

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