Results 51 to 60 of about 23,082 (185)

Geochemical discrimination of the Upper Ordovician Kinnekulle Bentonite in the Billegrav-2 drill core section, Bornholm, Denmark [PDF]

Estonian Journal of Earth Sciences, 2014
The content of the trace elements Ti, Nb, Zr and Th has been analysed in 34 Upper Ordovician bentonites from the Billegrav-2 drill core, Bornholm, Denmark. The section contains two 80–90 cm thick bentonites, which potentially may represent the Kinnekulle
Tarmo Kiipli, Toivo Kallaste, Arne T. Nielsen, Niels H. Schovsbo, Sven Siir   +4 more
doaj   +1 more source

Influence of Tapered‐End and Round‐End Bristle Designs on the Abrasive Enamel Wear Using Toothpastes With High Discrepancies in Abrasiveness

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Purpose The aim of this in vitro study was to investigate the influence of bristle end design of toothbrushes and the relative enamel abrasivity (REA) of used toothpaste on the resulting abrasive enamel wear. Materials and Methods A total of 160 bovine enamel samples were allocated into eight groups (n = 20) and surface topography was recorded
Michelle S. Stübi, Moritz Tanner, Blend Hamza, Leonardo Svellenti, Thomas Attin, Florian J. Wegehaupt   +5 more
wiley   +1 more source

Local salt purification in Aceh Timur regency using alkaline (KOH and NaOH) activated bentonite [PDF]

Chemical Industry and Chemical Engineering Quarterly
Various purification methods have been developed to improve local salt quality, with the NaCl content above 94%. Bentonite is one of the materials used as binder impurities in purification.
Wahyuningsih Puji, Muslimah Muslimah, Yusnawati Yusnawati   +2 more
doaj   +1 more source

Effects of Dietary Activated Charcoal Supplementation on Performance, Egg Quality, and Bone Calcification in Laying Hens Exposed to High Fluoride

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT The aim of the present study was to determine the effects of high dietary fluoride intake on performance, egg quality, serum biochemical parameters, bone tissue, mineral accumulation, and the expression of selected mineralisation‐related genes in laying hens, and to evaluate whether these effects could be alleviated by dietary activated ...
Muhammed Serkan Sevim, Emre Yilmaz
wiley   +1 more source

Influence of Ca2+ concentration on hydraulic properties of bentonite-sand mixtures

Yantu gongcheng xuebao, 2017
A liner system containing clay or bentonite-sand mixtures is installed on the bottom of a landfill to prevent contaminants from flowing into the surrounding ground.
XU Si-fa , WU Xue-hui , HU Qi , ZHANG Yong , WANG Zhe
doaj   +1 more source

Carryover of Aflatoxin From Dairy Feed to Milk: A Systematic Review (1 January 2004–31 December 2024)

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Aflatoxins, toxic metabolites produced by Aspergillus species, are frequently reported contaminants of dairy cattle feed worldwide, particularly in tropical and subtropical regions where climatic conditions favor fungal growth, and they can be transferred into milk and dairy products.
Queenta Ngum Nji, Richard Temitope Fagbohun, Oluwafemi Ayodeji Adebo, Patrick Berka Njobeh   +3 more
wiley   +1 more source

Restored wetlands: interplay between environmental variables, aboveground and belowground plant traits, and carbon cycling

New Phytologist, EarlyView.
Assessing relationships between environmental conditions, aboveground and belowground plant traits, and carbon cycling in restored wetlands (grazed and ungrazed), compared to a baseline in near‐natural wetlands in Denmark, revealed that ecosystem functions can be restored, even in cases where plant biodiversity has not recovered.
Marta Baumane, Johan Emil Kjær, Filippa Fredriksson, Hans Henrik Bruun, Kaj Sand‐Jensen, Søren Jessen, Chiara Raineri, Josefine Kock Jørgensen, Lars Baastrup‐Spohr   +8 more
wiley   +1 more source

Performance characteristics of EZhou bentonite of Hubei province and its modifi cation [PDF]

China Foundry, 2009
Both the chemical compositions and performance characteristics of the bentonite raw ores in Ezhou area of Hubei province and Honghuoshan area of Liaoning province were compared and analyzed.
Long Wei, Fan Zitian, Hu Xueting
doaj  

Chemical agents to control biofilm formation in step 1 of care—Toothpastes and mouthwashes/concepts and challenges

Periodontology 2000, EarlyView.
Abstract Maintaining optimal oral hygiene is important for overall oral care, ensuring the well‐being of teeth and their surrounding tissues. In addition, it promotes fresh breath and a pleasing smile. A key element of oral self‐care is the daily use of toothpaste during regular brushing.
Maud Joosstens, Cees Valkenburg, Fridus Van der Weijden   +2 more
wiley   +1 more source

Early results and lessons learned from biomanipulation and chemical restoration of a eutrophic shallow lake

Restoration Ecology, EarlyView.
Abstract Introduction Over 44% of European lakes fail to meet ecological quality standards, prompting substantial investment in lake restoration to achieve good ecological status. Unfortunately, effects are often short‐lived due to persistent internal phosphorus (P) loading and strong cyprinid‐driven bottom‐up control, which limits water quality ...
Emma Polauke, Kaj Sand‐Jensen, Christian Skov, Theis Kragh   +3 more
wiley   +1 more source