Results 51 to 60 of about 2,344 (157)

A New Thermal-Solar Field Configuration: The Rotatory Fresnel Collector or Sundial

open access: yesEnergies, 2021
A new type of Fresnel array has been devised and constructed as an answer to the need to reduce the investment costs of solar thermal collectors, without jeopardizing their efficiency in capturing solar radiation at high temperatures. The array of mirror
Javier Cano-Nogueras   +2 more
doaj   +1 more source

Linking Abundance and Activity of Ammonia‐Oxidising Bacteria and Archaea in an Agriculturally Impacted First‐Order Stream

open access: yesEnvironmental Microbiology, Volume 28, Issue 7, July 2026.
Ammonia‐oxidising archaea (AOA) and bacteria (AOB) coexist in streambed sediments, but their contributions to nitrification remain unresolved. Using field sampling, sequencing, qPCR, microcosm incubations and modelling, we show that AOB dominated nitrification in streambed sediments despite lower abundance, emphasizing the importance of distinguishing ...
Zhe Wang   +6 more
wiley   +1 more source

Moose indifferent to canopy loss from forest disturbance by bark beetles

open access: yesThe Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
Moose showed strikingly similar patterns of habitat selection before and after widespread forest disturbance following an infestation of bark beetles. Our findings indicate that beetle‐kill does not appreciably alter habitat quality for moose and highlight the importance of riparian areas in sustaining moose as they contend with changing forests ...
Alexander B. May   +5 more
wiley   +1 more source

Software to Support Remote Sensing of River Discharge Based on Critical Flow Theory

open access: yesRiver Research and Applications, Volume 42, Issue 4, Page 915-928, May 2026.
ABSTRACT Water resource management requires accurate observations of streamflow but standard field methods for measuring river discharge ( Q ) can be costly and hazardous for equipment and personnel. Remote sensing has become a viable alternative, but many image‐based techniques require field data for calibration, and depth and velocity can seldom be ...
Carl J. Legleiter, Inhyeok Bae
wiley   +1 more source

School geographic polygon: A case study [PDF]

open access: yesZbornik radova Departmana za geografiju, turizam i hotelijerstvo, 2017
A geographic polygon is a type of geographic laboratory under the open sky. The basic goal of the school geographic polygon is to acquire practical skills and habits from geography.
Vujnić Andrej, Nišić Anja
doaj   +1 more source

Integrative QSP Modeling of Cancer Stem Cells in Triple‐Negative Breast Cancer: Impacts on Tumor Immunity and Response to Immune Checkpoint Inhibitors

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 15, Issue 4, April 2026.
ABSTRACT Cancer stem cells (CSCs) contribute to an immunosuppressive microenvironment through complex mechanisms and tumor‐immune interactions. However, the key determinants of CSC characteristics in driving tumor progression, immune suppression, and response to ICIs remain unclear and require systematic investigation.
Junsheng Xue   +10 more
wiley   +1 more source

SunDial: embodied informal science education using GPS

open access: yesMedieKultur: Journal of Media and Communication Research, 2011
Science centers serve a number of goals for visitors, ideally providing experiences that are educational, social, and meaningful. This paper describes SunDial, a handheld application developed for families to use at a science center.
Megan K. Halpern   +7 more
doaj   +1 more source

A Study for the Restoration of the Sundials in King Sejong Era [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2011
The sundials produced in King Sejong era had the functions of accurate observation instruments and were fabricated in various forms such as Angbuilgu (hemispherical sundial). In this study, we investigated the literature, structural characteristics and
Yong Sam Lee, Sang Hyuk Kim
doaj   +1 more source

Integrating B Cell Differentiation Model With Real‐World Data Informs Determinants for Antibody‐Secreting Cell Depletions in Systemic Sclerosis

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 15, Issue 3, March 2026.
ABSTRACT Systemic sclerosis (SSc) is a complex autoimmune disorder characterized by extensive fibrosis, vascular abnormalities, and immune dysregulation, affecting clinical outcomes such as skin thickness and pulmonary function with high mortality rates. B cells play a pivotal role in the pathogenesis of SSc. This study aimed to develop a systems model
Tomohisa Nakada   +8 more
wiley   +1 more source

The power of the past: materializing collective memory at early medieval lordly centres

open access: yesEarly Medieval Europe, Volume 34, Issue 1, Page 34-69, February 2026.
The repurposing of earlier sites and monuments is an enduringly popular theme in early medieval archaeology, but in England it has attracted little interest among Late Saxon and early post‐Conquest studies. From the tenth century, however, an increasingly prevalent pattern is discernible of secular lords locating their power centres in relation to ...
Duncan W. Wright   +7 more
wiley   +1 more source

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