Results 41 to 50 of about 126,389 (308)

Scientific options for avoiding chronic fish testing on the basis of existing data and extrapolation approaches [PDF]

, 2016
The assessment of aquatic toxicity is an important component of the environmental hazard and risk assessment of all types of chemicals, and is therefore included in several pieces of EU chemicals legislation.
HALDER MARIA ELISABETH, KIENZLER AUDE, WORTH Andrew   +2 more
core   +1 more source

Seeds of change: The impact of Ethiopia's direct seed marketing approach on smallholders' seed purchases and productivity

American Journal of Agricultural Economics, EarlyView.
Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen, Gashaw T. Abate, Seid Yimam, Rui Benfica, David J. Spielman, Frank Place   +5 more
wiley   +1 more source

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source

Osteohistology of two phorusrhacids reveals uninterrupted growth strategy

The Anatomical Record, EarlyView.
Abstract Phorusrhacidae were apex predators that primarily dominated South America ecosystems for at least 40 million years with their imposing size and predatory lifestyle—yet some aspects of their biology remain poorly understood. Osteohistology is a tool for understanding growth dynamics and biomechanical adaptations.
Lotta Dreyer, Christian Cooper, Jingmai O'Connor   +2 more
wiley   +1 more source

Moas stafettpinne

, 2023
Jag är uppvuxen i ett brandgult hyreshus. Så många ord jag från början inte förstod. Inte ens visste om att de fanns. Till exempel ordet humanism. Trots att jag är en person som sovit i sängar skänkta av Lions och har en mamma som använde kyrkans barnverksamhet som barnvakt...
openaire   +2 more sources

Clade‐wide morphological and functional variation of the sauropsid columella

The Anatomical Record, EarlyView.
Abstract The columella (=stapes) is the middle ear bone of reptiles that transmits vibrations from the environment to the inner ear. It has been shown to exhibit extensive interspecific morphological disparity in several clades; however, its morphological variation and associated functional consequences remain poorly described.
John Peacock, Serjoscha W. Evers, Tiago R. Simões, Garth M. Spellman, Daniel J. Field   +4 more
wiley   +1 more source

Injectable polypeptide hydrogels via methionine modification for neural stem cell delivery. [PDF]

, 2018
Injectable hydrogels with tunable physiochemical and biological properties are potential tools for improving neural stem/progenitor cell (NSPC) transplantation to treat central nervous system (CNS) injury and disease.
Czechanski, A, Deming, TJ, Kim, JH, O'Shea, TM, Reinholdt, LG, Sofroniew, MV, Wollenberg, AL   +6 more
core   +1 more source

Developmental Characteristics of the Embryonic Liver Tissue and Long‐Term Culture of Primary Hepatocytes in Duck

Animal Research and One Health, EarlyView.
Liver development was investigated at different embryonic ages (EAs). Furthermore, numerous hepatocyte media were formulated and evaluated. These results could elaborate the developmental characteristics of duck liver tissue and determine the most suitable medium for the proliferation and characteristic maintenance of hepatocytes in vitro, which would ...
Jie Wei, Jing Tang, Bo Zhang, Chenchen Du, Yunsheng Zhang, Ming Xie, Zhengkui Zhou, Shuisheng Hou   +7 more
wiley   +1 more source

Can the masses of isolated planetary-mass gravitational lenses be measured by terrestrial parallax?

, 2014
Recently Sumi et al. (2011) reported evidence for a large population of planetary-mass objects (PMOs) that are either unbound or orbit host stars in orbits > 10 AU.
Abe, F., Albrow, M. D., Bennett, D. P., Bond, I. A., Botzler, C. S., Bray, J. C., Cherrie, J. M., Christie, G. W., Dionnet, Z., Freeman, M., Gould, A., Han, C., Heyrovsky, D., McCormick, J. M., Moorhouse, D. M., Muraki, Y., Natusch, T., Philpott, L. C., Rattenbury, N. J., Skowron, J., Sumi, T., Suzuki, D., Tan, T. -G., Tristram, P. J., Yock, P. C. M.   +24 more
core   +1 more source

The impact of a preprescribing formative assessment on learning in final‐year medical students using hospital inpatient electronic prescribing systems

British Journal of Clinical Pharmacology, EarlyView.
Aims Graduating medical students consistently report being unprepared for the complexity of prescribing in clinical practice. Current clinical prescribing teaching and authentic assessment are limited due to patient safety concerns. We aimed to examine the educational utility of supervised preprescribing as a learning process and potential authentic ...
Kellie A. Charles, Lorna Pairman, Emily Moon, Daniel Wong, John Quayle, Tim J. Wilkinson, Matthew Doogue, Paul Chin   +7 more
wiley   +1 more source