Vermont Sustainable Jobs Fund: Vermont’s green economy speeds up

In Vermont, a “sustainable” job is one that not only can endure but can boost environmental protection, social justice, and economic equity. Today business competitors collaborating on sustainable goals are doing well by doing good.Job creation - Vermont

Flow induced ultrasound scattering: experimental studies

Sound scattering by a finite width beam on a single rigid body rotation vortex flow is detected by a linear array of transducers (both smaller than a flow cell), and analyzed using a revised scattering theory. Both the phase and amplitude of the scattered signal are obtained on 64 elements of the detector array and used for the analysis of velocity and vorticity fields. Due to averaging on many pulses the signal-to-noise ratio of the phases difference in the scattered sound signal can be amplified drastically, and the resolution of the method in the detection of circulation, vortex radius, vorticity, and vortex location becomes comparable with that obtained earlier by time-reversal mirror (TRM) method (P. Roux, J. de Rosny, M. Tanter, and M. Fink, {\sl Phys. Rev. Lett.} {\bf 79}, 3170 (1997)). The revised scattering theory includes two crucial steps, which allow overcoming limitations of the existing theories. First, the Huygens construction of a far field scattering signal is carried out from a signal obtained at any intermediate plane. Second, a beam function that describes a finite width beam is introduced, which allows using a theory developed for an infinite width beam for the relation between a scattering amplitude and the vorticity structure function. Structure functions of the velocity and vorticity fields deduced from the sound scattering signal are compared with those obtained from simultaneous particle image velocimetry (PIV) measurements. Good quantitative agreement is found.Comment: 14 pages, 23 figures. accepted for publication in Phys. Fluids(June issue

Collaborating With Colleagues To Improve Student Learning Using The Connected Mathematics Project

I am a teacher of mathematics at Millburn Middle School, Millburn, New Jersey. During my nine years at Millburn, I have taught using the Connected Mathematics Program (CMP) for seven years to eighth graders and before that, I taught CMP in it\u27s pilot stage to sixth graders. This guide is a result of my thinking and learning during my time at Bank Street College. The guide is based on a journey through my learning as a professional developer. It is a tool which, I hope, will be of some use to other CMP leaders. It is hoped that if such a tool proves useful, that leaders will pass the torch to future leaders so they too may facilitate professional development opportunities for CMP for other new users. This guide is in the public domain, and copies may be freely distributed among teachers and teacher leaders using CMP

Keeping company with hope and despair. Family therapists' reflections and experience of working with childhood depression

The BIOMED international outcome study on childhood depression offered a unique opportunity for the systematic treatment of children and families with major depression using systemic psychotherapy. This paper describes the experiences of clinicians working with the families referred and the theoretical and clinical models that evolved during the treatment process. The concept of 'keeping company with hope and despair' emerged as an overarching framework for thinking about the quality of the therapeutic relationship in this developing area of clinical practice. We illustrate our systemically informed interventions with case examples and discuss the role played by therapists' 'use of self' in engaging and fostering change in families gripped by depression

ProGS: Property Graph Shapes Language (Extended Version)

Property graphs constitute data models for representing knowledge graphs. They allow for the convenient representation of facts, including facts about facts, represented by triples in subject or object position of other triples. Knowledge graphs such as Wikidata are created by a diversity of contributors and a range of sources leaving them prone to two types of errors. The first type of error, falsity of facts, is addressed by property graphs through the representation of provenance and validity, making triples occur as first-order objects in subject position of metadata triples. The second type of error, violation of domain constraints, has not been addressed with regard to property graphs so far. In RDF representations, this error can be addressed by shape languages such as SHACL or ShEx, which allow for checking whether graphs are valid with respect to a set of domain constraints. Borrowing ideas from the syntax and semantics definitions of SHACL, we design a shape language for property graphs, ProGS, which allows for formulating shape constraints on property graphs including their specific constructs, such as edges with identities and key-value annotations to both nodes and edges. We define a formal semantics of ProGS, investigate the resulting complexity of validating property graphs against sets of ProGS shapes, compare with corresponding results for SHACL, and implement a prototypical validator that utilizes answer set programming