Review of Data Sources for School to Work Transitions by Youth with Disabilities

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Transitions from AFDC to SSI Prior to Welfare Reform – Policy Brief

The Supplemental Security Income (SSI) and Temporary Assistance for Needy Families (TANF) programs serve overlapping target groups. SSI serves adults and children with disabilities from low-income families, while TANF serves low-income families with children. Consequently, policy changes in one program can affect the other. The target group for Aid to Families with Dependent Children (AFDC), TANF’s predecessor, also overlapped with SSI’s target group. Many have anticipated that the replacement of AFDC with TANF in August 1996 would eventually increase SSI participation as TANF recipients with disabilities sought SSI benefits to avoid TANF work requirements and time limits

Book Review: River of Compassion: A Christian Commentary on the Bhagavad Gita

A review of River of Compassion: A Christian Commentary on the Bhagavad Gita by Bede Griffiths

Spiral lead platen robotic end effector

A robotic end effector is disclosed which makes use of a rotating platen with spiral leads used to impact lateral motion to gripping fingers. Actuation is provided by the contact of rolling pins with the walls of the leads. The use of the disclosed method of actuation avoids jamming and provides excellent mechanical advantage while remaining light in weight and durable. The entire end effector is compact and easily adapted for attachment to robotic arms currently in use

Express Versus Automatic Assignment of Section 10(b) Causes of Action

In Lowry v. Baltimore & Ohio Railroad, 1 the United States Court of Appeals for the Third Circuit considered whether the owner of a security may assert his seller\u27s section 10(b) cause of action if the current owner did not receive an express assignment of the seller\u27s rights. 2 That is, if the seller of a security has a section 10(b) claim, does the seller\u27s cause of action run with the security so that the seller\u27s purchaser takes the seller\u27s cause of action by automatic assignment, or must the purchaser secure an express assignment of the seller\u27s cause of action in order for the purchaser to sue the party who defrauded the seller? This note addresses the issue whether a section 10(b) cause of action should run with the security where existence of the cause of action has become a matter of public knowledge. The note first reviews the law of assignments of causes of action in general, 3 and then summarizes three possible resolutions of the issue: adopting a rule of automatic assignments, 4 inferring the parties\u27 intent from the facts, 5 and requiring an expression of the parties\u27 intent. 6 In discussing these three resolutions, the note evaluates the various arguments expressed in Lowry, 7 the consistency of each argument with the law of assignments 8 and with federal securities law, 9 and the ramifications of each argument for maintaining class actions. 10 The note concludes that an express assignment of the seller\u27s cause of ..

Magnetic structure and magnetization of z-axis helical Heisenberg antiferromagnets with XY anisotropy in high magnetic fields transverse to the helix axis at zero temperature

A helix has a wavevector along the z axis with the magnetic moments ferromagnetically-aligned within xy planes with a turn angle kd between the moments in adjacent planes in transverse field Hx = 0. The magnetic structure and x-axis average magnetization per spin of this system in a classical XY anisotropy field HA is studied versus kd, HA, and large Hx at zero temperature. For values of HA below a kd-dependent maximum value, the xy helix phase transitions with increasing Hx into a spin-flop (SF) phase where the ordered moments have x, y, and z components. The moments in the SF phase are taken to be distributed on either one or two xyz spherical ellipses. The minor axes of the ellipses are oriented along the z axis and the major axes along the y axis where the ellipses are flattened along the z axis due to the presence of the XY anisotropy. From energy minimization of the SF spherical ellipse parameters for given values of kd, HA and Hx, four kd-dependent SF phases are found: either one or two xyz spherical ellipses and either one or two xy fans, in addition to the xy helix phase and the paramagnetic (PM) phase with all moments aligned along Hx. The PM phase occurs via second-order transitions from the xy fan and SF phases with increasing Hx. Phase diagrams in the Hx-HA plane are constructed by energy minimization with respect to the SF phases, the xy helix phase, and the xy fan phase for four kd values. One of these four phase diagrams is compared with the magnetic properties found experimentally for the model helical Heisenberg antiferromagnet EuCo2P2 and semiquantitative agreement is found.Comment: 14 pages, 8 captioned figure

Magnetic Structure and Magnetization of Helical Antiferromagnets in High Magnetic Fields Perpendicular to the Helix Axis at Zero Temperature

The zero-temperature angles of magnetic moments in a helix or sinusoidal fan confined to the xy plane, with respect to an in-plane magnetic field Hx applied perpendicular to the z axis of a helix or fan, are calculated for commensurate helices and fans with field-independent turn angles kd between moments in adjacent layers of the helix or fan using the classical J0-J1-J2 Heisenberg model. For 0 < kd < $4\pi/9$, first-order transitions from helix to a fan structure occur at fields Ht as previously inferred, where the fan is found to be approximately sinusoidal. However, for $4 \pi/9$ < kd < $\pi$, different behaviors are found depending on the value of kd and these properties vary nonmonotonically with kd. In this kd range, the change from helix to fanlike structure is usually a crossover with no phase transition between them, although first-order and second order transitions are found. We also calculated the average x-axis moment per spin $\mu_{x ave}$ versus Hx for helices and fans with crossovers and phase transitions between them. When smooth helix to fanlike crossovers occur in the range $4\pi/9$ < kd < $\pi$, $\mu_{x ave}$ exhibits an S-shape behavior with increasing Hx. This predicted behavior is consistent with $\mu_{x ave}$(Hx) data previously reported by Sangeetha, et al. [Phys. Rev. B 94, 014422 (2016)] for single-crystal EuCo2P2 possessing a helix ground state with kd = $0.85\pi$. The low-field magnetic susceptibility and the ratio Ht/Hc are calculated analytically or numerically versus kd for helices.Comment: 29 pages, 32 figures, 4 tables; v2: minor corrections, published versio

Accessible Proof of Standard Monomial Basis for Coordinatization of Schubert Sets of Flags

The main results of this paper are accessible with only basic linear algebra. Given an increasing sequence of dimensions, a flag in a vector space is an increasing sequence of subspaces with those dimensions. The set of all such flags (the flag manifold) can be projectively coordinatized using products of minors of a matrix. These products are indexed by tableaux on a Young diagram. A basis of "standard monomials" for the vector space generated by such projective coordinates over the entire flag manifold has long been known. A Schubert variety is a subset of flags specified by a permutation. Lakshmibai, Musili, and Seshadri gave a standard monomial basis for the smaller vector space generated by the projective coordinates restricted to a Schubert variety. Reiner and Shimozono made this theory more explicit by giving a straightening algorithm for the products of the minors in terms of the right key of a Young tableau. Since then, Willis introduced scanning tableaux as a more direct way to obtain right keys. This paper uses scanning tableaux to give more-direct proofs of the spanning and the linear independence of the standard monomials. In the appendix it is noted that this basis is a weight basis for the dual of a Demazure module for a Borel subgroup of GL(n). This paper contains a complete proof that the characters of these modules (the key polynomials) can be expressed as the sums of the weights for the tableaux used to index the standard monomial bases.Comment: 18 page