Why There are No Epistemic Duties

An epistemic duty would be a duty to believe, disbelieve, or withhold judgment from a proposition, and it would be grounded in purely evidential or epistemic considerations. If I promise to believe it is raining, my duty to believe is not epistemic. If my evidence is so good that, in light of it alone, I ought to believe it is raining, then my duty to believe supposedly is epistemic. I offer a new argument for the claim that there are no epistemic duties. Though people do sometimes have duties to believe, disbelieve, or withhold judgment from propositions, those duties are never grounded in purely epistemic consideration

Epistemology as Engineering?

According to a common objection to epistemological naturalism, no empirical, scientific theory of knowledge can be normative in the way epistemological theories need to be. In response, such naturalists as W.V. Quine have claimed naturalized epistemology can be normative by emulating engineering disciplines and addressing the relations of causal efficacy between our cognitive means and ends. This paper evaluates that "engineering reply" and finds it a mixed success. Based on consideration of what it might mean to call a theory "normative," seven versions of the normativity objection to epistemological naturalism are formulated. The engineering reply alone is sufficient to answer only the four least sophisticated versions. To answer the others, naturalists must draw on more resources than their engineering reply alone provides

Inferring the dynamics of underdamped stochastic systems

Many complex systems, ranging from migrating cells to animal groups, exhibit stochastic dynamics described by the underdamped Langevin equation. Inferring such an equation of motion from experimental data can provide profound insight into the physical laws governing the system. Here, we derive a principled framework to infer the dynamics of underdamped stochastic systems from realistic experimental trajectories, sampled at discrete times and subject to measurement errors. This framework yields an operational method, Underdamped Langevin Inference (ULI), which performs well on experimental trajectories of single migrating cells and in complex high-dimensional systems, including flocks with Viscek-like alignment interactions. Our method is robust to experimental measurement errors, and includes a self-consistent estimate of the inference error

Time deposits in monetary analysis

Certificates of deposit ; Savings accounts

Current Trends in College Health Medicine

All the complex factors which are bringing about changes in college education--economic, social, political, and cultural--are profoundly affecting college health medicine. These changes are occurring with unusual rapidity, and are certainly causing strains to the old establishment thought to be so secure and unassailable a few years ago. However, in the new trends--student participation in the work of the Health Service, expansion of the work of the Health Service to include the entire college community, and the coming age of the Mental Health Program--we recognize new and more effective ways to deliver health care to our college youth and their community, and to make the health service an integral part of the educational process