Results 81 to 90 of about 1,067,716 (304)

Enhancing soil health and tobacco productivity with different organic amendments: evidence from a 7-year field experiment

open access: yesFrontiers in Soil Science
Long-term organic fertilization is widely advocated to counteract soil fertility decline and nutrient imbalances in tobacco cropping systems. However, systematic research comprehensively evaluating the long-term effects of different organic fertilizers ...
Wei Yang   +9 more
doaj   +1 more source

Tobacco use in prison settings: A need for policy implementation [PDF]

open access: yes, 2012
• Tobacco use is the most widely used psycho-active substances by prisoners, with prevalence rates ranging from 64 to over 90 percent, depending on the country and the setting.
Baybutt, Michelle   +2 more
core  

Tobacco use in the third trimester of pregnancy and its relationship to birth weight. A prospective study in Spain [PDF]

open access: yes, 2015
Background Few studies have been carried out in Spain examining the use of tobacco amongst expectant mothers and its effect on birth weight. Aims To observe the proportion of expectant mothers who smoke during their pregnancy, and the impact of tobacco ...
Castro Sanchez, EM   +4 more
core   +1 more source

An Activity‐Dependent NEPAS–PTX3 Axis Links Neurovascular and Myelin Deficits to Cognitive Impairment

open access: yesAdvanced Science, EarlyView.
An activity‐dependent pathway links prefrontal circuit hypoactivity to cognitive impairment. Reduced PVA–mPFC activity upregulates NEPAS, which suppresses PTX3 secretion, leading to impaired angiogenesis, myelin deficits, and memory decline. Rescue is achieved by NEPAS knockdown or chemogenetic circuit activation.
Boya Hu   +11 more
wiley   +1 more source

Association studies of up to 1.2 million individuals yield new insights into the genetic etiology of tobacco and alcohol use. [PDF]

open access: yes, 2019
Tobacco and alcohol use are leading causes of mortality that influence risk for many complex diseases and disorders1. They are heritable2,3 and etiologically related4,5 behaviors that have been resistant to gene discovery efforts6-11.
23andMe Research Team   +99 more
core  

Natural Variation of NAR5 Determines Nitrogenase Activity and the Yield in Soybean

open access: yesAdvanced Science, EarlyView.
This study identified NAR5, a gene encoding a subtilisin‐like protease, that regulates nitrogenase activity in soybean nodules. Overexpressing NAR5 delayed nodule senescence, enhancing nitrogenase activity, yield, and low‐nitrogen tolerance. The elite haplotype NAR5HapI‐1 linked to superior nitrogenase activity and greater seed weight has been ...
Chao Ma   +11 more
wiley   +1 more source

Selective Inhibition of Integrin β3 Topology Provides a Safer Antithrombotic Strategy

open access: yesAdvanced Science, EarlyView.
Current integrin αIIbβ3 inhibitors effectively reduce thrombosis but also increase bleeding risk. During thrombosis, high shear blood flow can directly activate the integrin αIIbβ3 via a distinct topological change in the β3 transmembrane domain, independent of hemostatic platelet signaling.
Joonha Lee   +11 more
wiley   +1 more source

CLIMATRIAL: applicability and adaptability of a novel method to quantify the carbon footprint of a South African clinical trial

open access: yesTrials
Background No formal assessment of a method to measure the carbon emissions from a clinical trial has been undertaken in the low- and middle-income country setting. We aimed to evaluate the UK-based National Institute of Health Research (NIHR) method for
Nandi Louise Siegfried   +4 more
doaj   +1 more source

Sertoli Cell‐Derived Extracellular Vesicles Orchestrate Cadmium‐Induced Testicular Inflammation and Fibrosis

open access: yesAdvanced Science, EarlyView.
Environmental cadmium exposure disrupts testicular homeostasis through a novel intercellular communication axis. Stressed Sertoli cells release extracellular vesicles carrying damage‐associated molecular patterns and mitochondrial fragments, which activate macrophages via TLR4/NF‐κB signaling.
Jianfeng Ma   +17 more
wiley   +1 more source

Restoration of continuous cropping obstacles by microbial inoculants and mineral amendment in flue-cured tobacco

open access: yesIndustrial Crops and Products
Continuous cropping obstacles (CCOs) impair soil health and reduce crop yields, posing a significant challenge to agricultural sustainability. Tobacco is a vital economic crop worldwide.
Chen Wang   +12 more
doaj   +1 more source

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