Results 101 to 110 of about 1,418 (251)

Seepage protection of irrigation canals using horizontal directional drilling

open access: yesTehnički Glasnik, 2017
The paper is dedicated to the development of methods of waterproofing curtains arrangement for seepage protection of irrigation canals. The analysis of the informational sources in the field of seepage protection of irrigation canals has been conducted ...
Aleksandr Meneylyuk   +3 more
doaj  

Investigations of Intraoral Scan Body Extensions. Effect of Design on the Accuracy, Usability, and Feasibility for Digital Full‐Arch Implant Scans In Vitro

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objectives To evaluate the effect of different scan body extension designs on the accuracy, usability, and feasibility of digital full‐arch implant impressions in an edentulous mandibular model. Accuracy was expressed as trueness and precision, usability as scan time, and feasibility as the number of total scan failures.
Julian Hessel Baranowski   +3 more
wiley   +1 more source

Conservation and management implications of genetic and geometric scale variation in the ancient fish giant featherback (Chitala lopis)

open access: yesJournal of Fish Biology, EarlyView.
Abstract Giant featherback (Chitala lopis) is an ancient species of freshwater fish considered globally extinct until extant populations were re‐discovered in the Sundaland region of Indonesia in 2022. To improve management of the remaining populations, this study used genomic DNA and landmark‐based geometric morphometric analyses of fish scales to ...
Boby Muslimin   +23 more
wiley   +1 more source

The Adaptive Objectives of State‐Owned Enterprises amid Economic and Political Shifts: Evidence from Brazilian Firms, 1973–1993

open access: yesJournal of Management Studies, EarlyView.
Abstract We theorize how state ownership reweights organizational objectives when political and market conditions shift. Using a mixed‐method, history‐to‐theory design, we examine 160 state‐owned and 132 private Brazilian firms from 1973 to 1993. We argue that two mechanisms – appointment politicization and constituency‐protection salience – alter ...
Paul Ferreira   +2 more
wiley   +1 more source

Characterization of coesite‐bearing impact melt glass from the Hapcheon crater, Korea: Trimodal phase architecture, shock metamorphism, and implications for 40Ar/39Ar geochronology

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract We present the first micrometer‐scale, phase‐resolved compositional characterization of impact melt glass from the Hapcheon crater (~1.4 km apparent diameter), the first confirmed impact structure on the Korean Peninsula, integrating EPMA‐WDS (5 μm spot), confocal Raman spectroscopy (<1 μm spot), XRD, and 40Ar/39Ar step‐heating geochronology ...
Jin‐Young Lee   +2 more
wiley   +1 more source

For colonization success, should hosts and microbes travel alone, together, or swap partners along the way?

open access: yesNew Phytologist, EarlyView.
Experimental co‐introduction of duckweeds (Lemna japonica) and their microbiome in a common pond. Summary Microbiomes that enhance the performance of host plants are likely to be co‐introduced with their host during colonization because of their intimate association.
Takuji Usui   +2 more
wiley   +1 more source

CASING DRILLING TECHNOLOGY

open access: yesRudarsko-geološko-naftni Zbornik, 2005
Casing drilling is an alternative option to conventional drilling and uses standard oilfield casing instead of drillstring. This technology is one of the greatest developments in drilling operations.
Nediljka Gaurina-Međimurec
doaj  

The roads most traveled: genetic convergence in plant repeated evolution

open access: yesNew Phytologist, EarlyView.
Observation of a genotype–phenotype association in a focal lineage (magnifying lens) provides a starting point for predicting homolog reuse during repeated trait evolution. This review suggests that the likelihood that mutations in homologous genes contribute to similar phenotypes in other lineages depends on both mutational effect stability (MES) and ...
James W. Satterlee
wiley   +1 more source

Evaluation of a Custom Three‐Dimensional Surgical Guide in Mandibular Sagittal Split Osteotomy: An Exploratory Split‐Mouth Randomized Controlled Trial

open access: yesOrthodontics &Craniofacial Research, EarlyView.
ABSTRACT Objective This exploratory split‐mouth randomized controlled trial aimed to evaluate the effect of a custom three‐dimensional (3D) surgical guide on mandibular sagittal split osteotomy outcomes compared with conventional freehand osteotomy.
Evy Eida Vitria   +6 more
wiley   +1 more source

What Does “STEM” Mean to Students? Exploring the Interplay Between Self‐Efficacy, Extracurricular Activities, Subject Associations, and Academic Intentions in Secondary School

open access: yesSchool Science and Mathematics, EarlyView.
ABSTRACT Despite extensive discourse in educational research and practice, inconsistencies persist in students' perception of, and engagement with, STEM subjects. This study investigates how secondary school students perceive STEM disciplines, and which factors modulate their self‐efficacy and academic intentions. The survey (n = 853) revealed a widely
Alessandro Siani, Claudiu Dacin
wiley   +1 more source

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