Results 111 to 120 of about 17,070 (292)

A prospective study of the factors affecting outcomes of non-surgical root canal treatment: part 2: tooth survival.

open access: yes, 2011
AIM: To investigate the probability of and factors influencing tooth survival following primary (1°RCTx) or secondary (2°RCTx) root canal treatment. METHODOLOGY: This prospective study involved annual follow-up of 2 (100%) to 4 years (50%) of 1°RCTx (759
V. Mann   +5 more
core   +1 more source

Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers

open access: yesThe Curriculum Journal, EarlyView.
Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová   +6 more
wiley   +1 more source

Tooth survival following non-surgical root canal treatment: a systematic review of the literature.

open access: yes, 2010
AIMS: To investigate (i) the effect of study characteristics on reported tooth survival after root canal treatment (RCTx) and (ii) the effect of clinical factors on the proportion of root filled teeth surviving after RCTx. METHODOLOGY: Longitudinal human
V. Mann   +5 more
core   +1 more source

Z‐Scheme BiOCl‐Based Photocatalysts: Recent Advances in Designing, Structural Engineering, Formation Mechanisms, and High Performance Photocatalytic Environmental Remediation

open access: yesEcoEnergy, EarlyView.
This review deals with the recent advancements in design and engineering of BiOCl‐based Z‐scheme photocatalysts with emphasis on tailoring of structural, optoelectronic properties and heterojunction assembly for environmental applications including photodegradation of industrial organic waste, pharmaceuticals, pesticides, herbicides, toxic heavy metals,
Sakshi Sharma   +7 more
wiley   +1 more source

Recent advances in photocatalytic hydrogen peroxide production

open access: yesPhotoMat, EarlyView., 2023
We classify the representative photocatalytic materials for photosynthesis of hydrogen peroxide (H2O2) in recent years and discuss the related modification methods in detail, providing inspiration and insights for the future design of photocatalysts for H2O2 production.
Jinyu Yan   +4 more
wiley   +1 more source

WILLINGNESS TO PAY TO AVOID HEALTH RISKS FROM PESTICIDES, A CASE STUDY FROM NICARAGUA

open access: yes
A contingent valuation approach to assess the health effects of pesticides among Nicaraguan vegetable farmers is presented. Farmers' valuation of health is measured as willingness to pay (WTP) for low toxicity pesticides.
Waibel, Hermann, Garming, Hildegard
core  

Outcome of primary root canal treatment: systematic review of the literature - Part 2. Influence of clinical factors

open access: yes, 2007
AIMS: (i) To carry out meta-analyses to quantify the influence of the clinical factors on the efficacy of primary root canal treatment and (ii) to identify the best treatment protocol based on the current evidence.
S. Rahbaran   +11 more
core   +1 more source

Challenges in Implementing European Regulation on Water Reuse for Sustainable Agriculture

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT The Regulation (EU) 2020/741 on minimum requirements for water reuse is a key policy for sustainable water management under growing water scarcity in Europe. This paper examines expert perspectives on the challenges involved in implementing EU regulation for water reuse in agriculture, aiming to broaden existing research, which is largely ...
Patricia Allgaier   +2 more
wiley   +1 more source

Prenatal factors, childhood growth trajectories and age at menarche.

open access: yes, 2002
BACKGROUND: In recent studies a larger birth size has been shown to delay the timing of menarche. The mechanisms underlying this association are not clear, however, as birthweight is a predictor of body size in childhood, and a large body size is known ...
De Stavola, Bianca L   +5 more
core   +1 more source

Cytotoxicity of 19 Pesticides in Rainbow Trout Gill, Liver, and Intestinal Cell Lines

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract The rainbow trout gill cell line (RTgill‐W1), via test guideline 249 of the Organisation for Economic Co‐operation and Development, has been established as a promising New Approach Methodology, although to advance confidence in the method more case studies are needed that: 1) expand our understanding of applicability domains (chemicals with ...
Sophie Emberley‐Korkmaz   +4 more
wiley   +1 more source

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