Gregory K. Brown

ORCID: 0000-0002-4294-6879
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About
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Research Areas
  • Suicide and Self-Harm Studies
  • Fern and Epiphyte Biology
  • Plant Diversity and Evolution
  • Plant and animal studies
  • Mental Health Treatment and Access
  • Child and Adolescent Psychosocial and Emotional Development
  • Botany, Ecology, and Taxonomy Studies
  • Sesquiterpenes and Asteraceae Studies
  • Plant Pathogens and Fungal Diseases
  • Tree Root and Stability Studies
  • Gun Ownership and Violence Research
  • Posttraumatic Stress Disorder Research
  • Plant Taxonomy and Phylogenetics
  • Homicide, Infanticide, and Child Abuse
  • Plant Physiology and Cultivation Studies
  • Botany and Plant Ecology Studies
  • Phytochemistry and Biological Activities
  • Smart Agriculture and AI
  • Growth and nutrition in plants
  • Advances in Cucurbitaceae Research
  • Leaf Properties and Growth Measurement
  • Plant Surface Properties and Treatments
  • Personality Disorders and Psychopathology
  • Emergency and Acute Care Studies
  • Resilience and Mental Health

University of Wyoming
2005-2023

University of Pennsylvania
2011-2023

California University of Pennsylvania
2023

Bridge University
2023

Butler Hospital
2023

Michigan State University
1995-2023

Curtin University
2023

John Brown University
2023

New York State Office of Mental Health
2022

Columbia University
2009-2022

This book, first published in 2000, presents a synthesis of the extensive information available on biology Bromeliacea, largely neotropical family about 2700 described species. Reproductive and vegetative structure related physiology, ecology evolution are emphasized, rather than floristics taxonomy. Guiding questions include: why is this inordinately successful arboreal (epiphytic) other typically stressful habitats also so important to fauna beyond pollinators frugivores forest canopy?...

10.5860/choice.38-2161 article EN Choice Reviews Online 2000-12-01

Suicidal behavior is a major public health problem in the United States. The suicide rate has steadily increased over past 2 decades; middle-aged men and military veterans are at particularly high risk. There dearth of empirically supported brief intervention strategies to address this care settings generally emergency departments (EDs), where many suicidal patients present for care.To determine whether Safety Planning Intervention (SPI), administered EDs with follow-up contact patients, was...

10.1001/jamapsychiatry.2018.1776 article EN JAMA Psychiatry 2018-07-11

• Premise : Bromeliaceae form a large, ecologically diverse family of angiosperms native to the New World. We use bromeliad phylogeny based on eight plastid regions analyze relationships within family, test new, eight‐subfamily classification, infer chronology evolution and invasion different regions, provide basis for future analyses trait rates diversification. Methods employed maximum‐parsimony, maximum‐likelihood, Bayesian approaches 9341 aligned bases four outgroups 90 species...

10.3732/ajb.1000059 article EN American Journal of Botany 2011-05-01

There is considerable controversy in the literature regarding extent to which chronic pain and depression are associated possible causal relationship of such an association. The present study examines these issues with a sample 243 patients diagnosed rheumatoid arthritis (RA) who were mailed questionnaires for six waves data collection. results indicated that RA experience higher levels depressive symptomatology than community samples. Using two-latent-variable, cross-lagged design,...

10.1037//0021-843x.99.2.127 article EN Journal of Abnormal Psychology 1990-01-01

A taxonomic revision of Bromeliaceae subfam. Tillandsioideae is presented based on a multi-locus DNA sequence phylogeny (viz., plastid loci rpoB-trnC-petN, trnK-matK-trnK, and ycf1, the nuclear gene PHYC) new or re-evaluated morphology (e.g., leaf, inflorescence, sepal, petal, ovary, stigma, stamen, pollen, ovule, seed morphology). This enables circumscription monophyletic units using synapomorphic combinations diagnostic morphological characters. Stigma has proven to be indicative for...

10.11646/phytotaxa.279.1.1 article EN Phytotaxa 2016-10-13

We implemented an innovative, brief, easy-to-administer 2-part intervention to enhance coping and treatment engagement. The consisted of safety planning structured telephone follow-up postdischarge with 95 veterans who had 2 or more emergency department (ED) visits within 6 months for suicide-related concerns (i.e., suicide ideation behavior). significantly increased behavioral health attendance 3 after intervention, compared in the a previous ED visit without intervention. trend was...

10.2105/ajph.2015.302656 article EN American Journal of Public Health 2015-06-11

Objective: Emergency departments (EDs) are often the primary contact point for suicidal individuals. The post-ED visit period is a high suicide risk time. To address need support during this time, novel intervention was implemented in five Department of Veterans Affairs medical center EDs. combined Safety Planning Intervention (SPI) with structured follow-up and monitoring (SFU) by telephone individuals who did not require hospitalization. This study assessed intervention’s acceptability...

10.1176/appi.ps.201500082 article EN Psychiatric Services 2016-02-01

Suicide is a leading cause of deaths in the US. Although emergency department (ED) an opportune setting, ED-initiated interventions remain underdeveloped and understudied. To determine if ED process improvement package, with subfocus on improving implementation collaborative safety planning, reduces subsequent suicide-related behaviors. The Emergency Department Safety Assessment Follow-up Evaluation 2 (ED-SAFE 2) trial, stepped-wedge cluster randomized clinical trial conducted 8 EDs across...

10.1001/jamapsychiatry.2023.1304 article EN JAMA Psychiatry 2023-05-17

Parsimony analysis of 31 sequences the chloroplast locus ndhF was used to address questions subfamilial phylogeny in Bromeliaceae. Results presented here are congruent with those from DNA restriction site recognizing a clade containing Bromelioideae and Pitcairnioideae, resolving Tillandsioideae near base family. Placements several taxonomically difficult genera (e.g., Glomeropitcairnia Navia) corroborate traditional treatments; however, these data suggest that Brocchinia (Pitcairnioideae)...

10.2307/2445903 article EN American Journal of Botany 1997-05-01

Reducing deaths from veteran suicide is a public health priority for veterans who receive their care the Department of Veterans Affairs (VA) and those services in community settings. Emergency departments frequently function as primary or sole point contact with system suicidal individuals; therefore, they represent an important venue which to identify treat are at risk suicide. We describe design, implementation initial evaluation brief behavioral intervention seeking VA emergency...

10.2105/ajph.2011.300501 article EN American Journal of Public Health 2012-02-10

Abstract Of the eight subfamilies currently recognized in Bromeliaceae, Bromelioideae is perhaps most poorly understood. Generic circumscriptions are unclear, and an exceptionally diverse morphology coupled with unusually low rate of sequence divergence within Bromeliaceae has made it difficult to resolve phylogenetic relationships subfamily. Although recent molecular studies have begun elucidating among species not sampled deeply and/or broadly across Bromelioideae. The purpose this study...

10.1600/036364415x686413 article EN Systematic Botany 2015-02-01

Background: Safety planning is a brief intervention that has become an accepted practice in many clinical settings to help prevent suicide. Even though it quick compared other approaches, frequently requires 20 min or more complete, which can impede adoption. A self-administered, Web-based safety application could potentially reduce clinician time, promote standardization and quality, provide enhanced ability share the created plan. Objective: The aim of this study was design, build, test...

10.2196/jmir.6816 article EN cc-by Journal of Medical Internet Research 2017-05-15

Over 400 taxa in the Bromeliaceae were surveyed for stigma morphology. Five mor- phological categories (conduplicate-spiral, simple-erect, cupulate, convolute-blade, and coralliform) account all known variation bromeliad The coralliform type is described illustrated first time. subfamilies Bromelioideae Pitcairnioideae appear to be nearly homogeneous conduplicate-spiral type. All five of types are found third subfamily, Tillandsioideae, where variability promises most useful systematically....

10.2307/2419055 article EN Systematic Botany 1989-01-01

Cladistics, phenetics, and our understanding of chromosomal evolution were applied to questions the relationships resemblances among three subfamilies monocot family Bromeliaceae. This large, distinct (2100 species) is mostly from new world tropics. Among 10 possibly closely related families monotypic order Bromeliales, Velloziaceae Bromeliflorae appear be most likely share same common ancestor with Bromeliacae, though other members (and some Zingiberiflorae Commeliniflorae) are also...

10.2307/2418884 article EN Systematic Botany 1987-10-01

The objective of this study is to summarize staff perceptions the acceptability and utility safety planning structured post-discharge follow-up contact intervention (SPI-SFU), a suicide prevention that was implemented tested in five Veterans Affairs Medical Center emergency departments (EDs). A purposive sampling approach used identify 50 member key informants. Interviews were transcribed coded using thematic analysis. Almost all perceived as helpful connecting SPI-SFU participants services....

10.1080/13811118.2016.1164642 article EN Archives of Suicide Research 2016-04-20

The role of response to cognitive therapy as a predictor suicide was investigated by comparing 17 outpatients with mood disorders who committed matched patients did not commit suicide. suiciders attended significantly fewer sessions and dropped out more frequently: 88% the suiciders, compared 53% controls, were rated their therapists requiring treatment at termination. They also had higher levels hopelessness termination therapy. results suggest that premature inadequate have unfavorable...

10.1111/j.1943-278x.1998.tb00639.x article EN Suicide and Life-Threatening Behavior 1998-06-01
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