John R. Jordan

Learn More
 The female gametophyte is an essential structure for angiosperm reproduction that mediates a host of reproductive functions and, following fertilization, gives rise to most of the seed. Here, we describe a rapid method to analyze Arabidopsis female gametophyte structure using confocal laser scanning microscopy (CLSM). We present a comprehensive description(More)
RNAs coding for connexins 32, 43, and the putative lens gap junction protein MP26 were tested for their ability to induce cell-cell coupling in Xenopus oocyte pairs. Large, voltage-insensitive conductances developed when connexin32 and 43 RNA-injected oocytes were paired both with themselves and with each other. Oocyte pairs injected with water manifested(More)
In 1994, the American Psychological Association and the Society for Psychotherapy Research convened a Core Battery Conference to develop a set of criteria for the selection of a universal core battery that could be used as a common outcome tool across all outcome studies. The Treatment Outcome Package (TOP) is a behavioral health assessment and outcome(More)
UvrD (DNA helicase II) is an essential component of two major DNA repair pathways in Escherichia coli: methyl-directed mismatch repair and UvrABC-mediated nucleotide excision repair. In addition, it has an undefined role in the RecF recombination pathway and possibly in replication. In an effort to better understand the role of UvrD in these various aspects(More)
With survey data collected primarily from peer support group participants, the authors compared stigmatization responses of 462 parents losing children to suicide with 54 other traumatic death survivors and 24 child natural death survivors. Parents who encountered harmful responses and strained relations with family members and non-kin reported heightened(More)
Taken among parents who sustained the loss of a child to suicide this study explores the participation of parents in Internet support groups, comparing their demographic and loss-related characteristics (N = 104) to other parent survivors participating in face-to-face support groups (N = 297). Contrary to expectations that Internet affiliates would be(More)
-The use of chromatic information in dense stereo correspondence is investigated. Specifically, the chromatic photometric constraint, which is used to specify a mathematical optimality criterion for solving the dense stereo correspondence problem, is developed. The result is a theoretical construction for developing dense stereo correspondence algorithms(More)
This article describes the development of the Grief Evaluation Measure (GEM), a new instrument designed to screen for the development of a complicated mourning response in a bereaved adult. The GEM provides a quantitative and qualitative assessment of risk factors, including the mourner's loss and medical history, coping resources before and after the(More)
This comparative survey contrasted 571 parents who lost children to various death causes: 48 to drug-related deaths and overdoses, 462 to suicide, 24 to natural death cases, and 37 to mostly accidental death cases. Groups were compared in terms of grief difficulties, mental health problems, posttraumatic stress, and stigmatization. Results did not show any(More)
Membrane-wall adhesions in zygotes of the brown algaPelvetia were visualized following plasmolysis. Strands of cytoplasm remained firmly attached to the cell wall at discrete adhesion sites during plasmolysis. Adhesion sites were uniformly distributed in ungerminated zygotes, but were concentrated in the apical 5 μm of the elongating rhizoid in germinated(More)