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This teacher's guide for rocketry presents the history, scientific principles and mathematics of rockets through problem-solving and cooperative learning activities.
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Police department design, political pressure, and racial inequality in arrests
American Journal of Political Science, EarlyView.Abstract This paper theorizes a source of bias in discretionary arrests: strategic limits on police officer learning. Officers have a variety of tactics at their disposal besides arrest that they use for less serious offenses when they judge the underlying behavior to be less severe. In departments led by a chief with special expertise in crime control,
Andrew J. McCall
wiley +1 more source
Analysis of carbon nano particle variant as the propellant fuel to increase specific impulses of rockets. [PDF]
F1000Res, 2023 Navalino R, Muda N, Hafizah M, Ruyat Y.
europepmc +1 more source
American Journal of Political Science, EarlyView.Abstract Existing literature posits that attitudes toward immigration are shaped by the impact of migrants on native workers' wages and employment, as well as by various other material, cultural, and social concerns. However, empirically disentangling these influences can be challenging.
Lena Maria Schaffer, Gabriele Spilker
wiley +1 more source
, 2017 In this thesis we look at the most cost-effective trajectory for power limited rockets, i.e. the trajectory which costs the least amount of propellant. First some background information as well as the differences between thrust limited and power limited ...
Oudhof, Nathalie (author)
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Lithic analysis in African archaeology: Advances and key themes
Archaeometry, EarlyView.Abstract Stone artifacts (lithics) preserve for extended periods; thus they are key evidence for probing the evolution of human technological behaviors. Africa boasts the oldest record of stone artifacts, spanning 3.3 Ma, rare instances of ethnographic stone tool‐making, and stone tool archives from diverse ecological settings, making it an anchor for ...
Deborah I. Olszewski +2 more
wiley +1 more source
Archaeometry, EarlyView.ABSTRACT The hypotheses of Senonian flint to be a prime source of prehistoric “chalcedony” flint artefacts from the Negev Desert (Israel) was not investigated in detail thus far. By combining trace‐element profiling with statistical interpretation, ten flint items from Nahal Zahal, an Early Pre‐Pottery Neolithic B site in the northern Negev, were ...
Meir Finkel +5 more
wiley +1 more source
, 2013 We follow traces of a basic energy-balance equation able to support a precise definition of the mass effect in our model. It might be explained assuming the quantum vacuum similar to a wavy floor constraining the rolling disk in the classical case; but ...
MASTROCINQUE, GIUSEPPE
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British Journal of Pharmacology, EarlyView.Obesity is a chronic, relapsing, multisystem disease in which cardiometabolic risk arises from excess adiposity and progressive dysfunction of peripheral organs, ultimately disrupting endocrine and metabolic crosstalk among tissues. Within this network, sulphur‐based biology, centred on hydrogen sulphide and related reactive sulphur species, has ...
Martina Smimmo +4 more
wiley +1 more source