Results 81 to 90 of about 23,038 (167)
Journal of the Royal Anthropological Institute, EarlyView.Over the last 25 years, perceptions of the early prehistory of Northwest Africa have undergone radical changes due to new fieldwork projects and a corresponding growth in scientific interest in the region. Much of this work has been focused in Morocco, known for its extremely rich fossil and archaeological records in caves and rock shelters.
Nick Barton +3 more
wiley +1 more source
High temperature thruster technology for spacecraft propulsion [PDF]
A technology program intended to develop high-temperature oxidation-resistant thrusters for spacecraft applications is considered. The program will provide the requisite material characterizations and fabrication to incorporate iridium coated rhenium ...
Schneider, Steven J.
core +1 more source
BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.ABSTRACT Objective To evaluate whether the IOTA ADNEX model and the Two‐Step Strategy improve triage and referral of adnexal masses in routine gynaecologic care compared with the RMI and to identify an appropriate malignancy‐risk threshold. Design Prospective multicenter cohort study. Setting Thirteen non‐tertiary hospitals and clinics and one tertiary
Nikoline Schou Karlsen +9 more
wiley +1 more source
The Future Impact of Much Lower Launch Cost [PDF]
For decades, the high cost of space launch has been the greatest limiting factor on the nu ber and size of space missions. Recently commercial rockets have reduced launch cost to about one-twentieth of the space shuttle cost.
Jones, Harry W.
core +1 more source
Journal of Forensic Sciences, EarlyView.Abstract Forensic ballistics is essential in analyzing evidence from firearm use in criminal investigations, with gunshot residue (GSR) detection providing key information about the firearm and shooting conditions. Traditional methods like spectroscopy and scanning electron microscopy (SEM) have limitations in sensitivity, cost, and accessibility ...
Paulo Tonin +2 more
wiley +1 more source
Review of Kaufman thruster development at the Lewis Research Center, 1973 [PDF]
Two thruster sizes are studied. One, a small 5-cm or 8-cm size is for spacecraft station keeping. The other, 30-cm (130 mN thrust), is for a thruster array to do primary solar electric propulsion.
Kerslake, W. R.
core +1 more source
Developing Workforce Capability in the Context of HR Ecosystem Learning
Human Resource Management Journal, EarlyView.ABSTRACT For many organizations, developing workforce capabilities is central as it involves refining critical human resource processes such as upskilling or the acquisition of new profiles. These processes are becoming increasingly complex to manage as organizations collaborate within larger work ecosystems. Surprisingly, little research has addressed
Sophie D'Armagnac +3 more
wiley +1 more source
Global Policy, EarlyView.ABSTRACT An inherent divide features within the Lisbon Treaty between civilian and military/security competences; something previously more obvious via the ‘pillar system's’ separations. This division follows the Member States (MS) (natural) protection of their military/defence autonomy; their core sovereign powers.
Charlie J. P. Bennett
wiley +1 more source
High-latitude ionospheric winds related to solar-interplanetary conditions [PDF]
Treated jointly, two recent results imply that the distribution of winds in the polar ionosphere should change as a function of the direction of the interplanetary magnetic field.
Heppner, J. P.
core +1 more source
Contemporary Accounting Research, EarlyView.ABSTRACT During the COVID‐19 pandemic, states imposed restrictions intended to slow the spread of the virus. We investigate whether states' reliance on consumption tax revenue, relative to other tax revenue sources, is associated with the duration of COVID‐19 mobility restrictions.
Nathan C. Goldman +2 more
wiley +1 more source